AU6352586A - Creation of Inventions and Patents with Artificial Intelligence

AU6352586A – An electrofusion coupler
– Google Patents

AU6352586A – An electrofusion coupler
– Google Patents
An electrofusion coupler

Info

Publication number
AU6352586A

AU6352586A
AU63525/86A
AU6352586A
AU6352586A
AU 6352586 A
AU6352586 A
AU 6352586A
AU 63525/86 A
AU63525/86 A
AU 63525/86A
AU 6352586 A
AU6352586 A
AU 6352586A
AU 6352586 A
AU6352586 A
AU 6352586A
Authority
AU
Australia
Prior art keywords
sleeve
fusing
adequate
blind bore
plastics
Prior art date
1985-10-24
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Granted

Application number
AU63525/86A
Other versions

AU586038B2
(en

Inventor
Malcolm Raymond Barfield
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Glynwed Tubes and Fittings Ltd

Original Assignee
Glynwed Tubes and Fittings Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1985-10-24
Filing date
1986-10-03
Publication date
1987-04-30
Family has litigation

First worldwide family litigation filed
litigation
Critical
https://patents.darts-ip.com/?family=10587182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU6352586(A)
“Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1986-10-03
Application filed by Glynwed Tubes and Fittings Ltd
filed
Critical
Glynwed Tubes and Fittings Ltd

1987-04-30
Publication of AU6352586A
publication
Critical
patent/AU6352586A/en

1989-06-29
Application granted
granted
Critical

1989-06-29
Publication of AU586038B2
publication
Critical
patent/AU586038B2/en

2006-10-03
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics

F16L47/02—Welded joints; Adhesive joints

F16L47/03—Welded joints with an electrical resistance incorporated in the joint

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor

B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure

B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement”

B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement” characterised by the type of heated elements which remain in the joint

B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement” characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor

B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure

B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement” characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/01—General aspects dealing with the joint area or with the area to be joined

B29C66/05—Particular design of joint configurations

B29C66/10—Particular design of joint configurations particular design of the joint cross-sections

B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section

B29C66/112—Single lapped joints

B29C66/1122—Single lap to lap joints, i.e. overlap joints

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/01—General aspects dealing with the joint area or with the area to be joined

B29C66/05—Particular design of joint configurations

B29C66/10—Particular design of joint configurations particular design of the joint cross-sections

B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections

B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section

B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/01—General aspects dealing with the joint area or with the area to be joined

B29C66/05—Particular design of joint configurations

B29C66/10—Particular design of joint configurations particular design of the joint cross-sections

B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections

B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section

B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles

B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles

B29C66/52—Joining tubular articles, bars or profiled elements

B29C66/522—Joining tubular articles

B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/52—Joining tubular articles, bars or profiled elements

B29C66/522—Joining tubular articles

B29C66/5229—Joining tubular articles involving the use of a socket

B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop

B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/90—Measuring or controlling the joining process

B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux

B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux

B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature

B29C66/91211—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods

B29C66/91218—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature with special temperature measurement means or methods using colour change, e.g. using separate colour indicators

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/90—Measuring or controlling the joining process

B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux

B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux

B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/90—Measuring or controlling the joining process

B29C66/97—Checking completion of joining or correct joining by using indications on at least one of the joined parts

B29C66/972—Checking completion of joining or correct joining by using indications on at least one of the joined parts by extrusion of molten material

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor

B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure

B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement” characterised by the composition of the heated elements which remain in the joint

B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. “verlorenes Schweisselement” characterised by the composition of the heated elements which remain in the joint being metallic

B—PERFORMING OPERATIONS; TRANSPORTING

B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL

B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING

B29C66/00—General aspects of processes or apparatus for joining preformed parts

B29C66/90—Measuring or controlling the joining process

B29C66/94—Measuring or controlling the joining process by measuring or controlling the time

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

Y10T29/00—Metal working

Y10T29/49—Method of mechanical manufacture

Y10T29/49002—Electrical device making

Y10T29/49082—Resistor making

Y10T29/49083—Heater type

Abstract

An electrofusion coupler sleeve for use in connecting together two plastics pipes by fitting the ends into opposite ends of the sleeve and passing an electric current through a resistance heater (17) embedded in the sleeve adjacent its inner surface (10) to fuse together the pipes and the sleeve, incorporates visual indicating means (24, 30) for indicating if the electrical energy supplied has been adequate for proper fusing. The indicating means takes the form of a blind bore (24) extending into the sleeve from the exterior towards the interior. When, in use, the heater (17) is energised, if the electrical energy supplied has been adequate for proper fusing, the softened flowable plastics material is forced, by the pressure produced by heating and fusing, to rise within the blind bore (24) and project from the outer surface of the sleeve. The sleeve may comprise an inner plastics layer (10) of a colour contrasting with that of the outer layer (14), so that, if fusing has been adequate, the contrasting material of the inner layer (10) projects, from the blind bore (24), above the material of the outer layer (14).

AU63525/86A
1985-10-24
1986-10-03
An electrofusion coupler

Ceased

AU586038B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

GB8526235A

GB8526235D0
(en)

1985-10-24
1985-10-24
Electrofusion coupler

GB8526235

1985-10-24

Publications (2)

Publication Number
Publication Date

AU6352586A
true

AU6352586A
(en)

1987-04-30

AU586038B2

AU586038B2
(en)

1989-06-29

Family
ID=10587182
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU63525/86A
Ceased

AU586038B2
(en)

1985-10-24
1986-10-03
An electrofusion coupler

Country Status (11)

Country
Link

US
(1)

US4727242A
(en)

EP
(1)

EP0221396B1
(en)

AT
(1)

ATE50850T1
(en)

AU
(1)

AU586038B2
(en)

CA
(1)

CA1260663A
(en)

DE
(1)

DE3669382D1
(en)

DK
(1)

DK165521C
(en)

ES
(1)

ES2011763B3
(en)

GB
(1)

GB8526235D0
(en)

NZ
(1)

NZ217820A
(en)

ZA
(1)

ZA868054B
(en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4931116A
(en)

1986-05-27
1990-06-05
Raychem Corporation
Heat-recoverable coupler

CH672014A5
(en)

1986-08-29
1989-10-13
Fischer Ag Georg

GB2194749A
(en)

1986-09-09
1988-03-16
Du Pont
Method of manufacturing heat-weldable thermoplastic fittings

NL8700299A
(en)

1987-02-09
1988-09-01
Wavin Bv

WELDING SOCKET OF THERMOPLASTIC PLASTIC, METHOD FOR FORMING SUCH A WELDING SOCKET AND TOOLS FOR USE IN CARRYING OUT SUCH METHOD.

JPH0536669Y2
(en)

1987-10-22
1993-09-16

CA1321626C
(en)

1988-07-21
1993-08-24
Naotake Uda
Electrofusion of electrofusion joint, method of confirming state of fusion and fusion joint suitable for use in the methods

FR2643014B1
(en)

1988-12-29
1991-05-31
Gaz De France

DEVICE FOR DETECTING, DURING WELDING, VARIATIONS IN THE PHYSICAL STATE OF THE PLASTIC MATERIAL OF A CONNECTING PIECE PROVIDED FOR JOINING TUBES

US5150922A
(en)

1989-01-11
1992-09-29
Osaka Gas Co., Ltd.
Electrofusion joint and hot water supply header using the same

US5228186A
(en)

1989-05-03
1993-07-20
Fusion Plastics Ltd.
Method of manufacturing electro-fusion fittings

GB8910070D0
(en)

1989-05-03
1989-06-21
Fusion Plastics Ltd
Electro-fusion fittings

DE4203626C2
(en)

1992-02-08
1993-11-04
Fischer Georg Rohrleitung

WELDING SLEEVE AND METHOD FOR THE PRODUCTION THEREOF

US5369248A
(en)

1992-09-01
1994-11-29
Gaz De France
Electro-weldable connecting piece having connection terminals and its method of manufacture

US5566988A
(en)

1993-04-30
1996-10-22
The Gates Rubber Company
Heat shrinkable hose clamp with indicator

US5531483A
(en)

1993-12-06
1996-07-02
The Gates Rubber Company
Heat shrinkable hose clamp with heating indicator

GB9406591D0
(en)

1994-03-31
1994-05-25
Glynwed Plastics
Improvements in or relating to electrofusion couplers

GB9408461D0
(en)

1994-04-28
1994-06-22
Glynwed Plastics
Method of manufacturing and electrofusion coupler

GB2299047A
(en)

1995-03-21
1996-09-25
Uponor Ltd
Manufacture of electrofusion fittings

GB2304163B
(en)

1995-08-05
1999-03-17
Uponor Ltd
Pipe joint and electrofusion coupling therefor

US5708251A
(en)

1995-10-30
1998-01-13
Compucraft Ltd.
Method for embedding resistance heating wire in an electrofusion saddle coupler

GB2323507B
(en)

1997-03-21
2000-11-29
Ceramaspeed Ltd
Electric heater unit and method of manufacture

US6883835B2
(en)

2001-03-05
2005-04-26
Basic Resources, Inc.
Polyfusion pipe repair system and method

US6857670B2
(en)

2001-12-05
2005-02-22
Cuno Incorporated
Plastic tube joint

US6870143B2
(en)

2002-04-18
2005-03-22
Basic Resources, Inc.
System and method for encapsulating a pipe

US7156423B2
(en)

2003-04-11
2007-01-02
3M Innovative Properties Company
Plastic tube joint

US20060202471A1
(en)

2005-03-07
2006-09-14
Weisbond Bradley K
Electro-fusion joining system for thermoplastic piping systems

CA2499849C
(en)

2005-03-09
2010-02-02
Zcl Composites Inc.
Composite laminated sheet material for containment sumps

US20100295299A1
(en)

2007-06-12
2010-11-25
Orion Enterprises, Inc.
Joint and joining method for plastic pipe

WO2011044080A2
(en)

2009-10-06
2011-04-14
Prinsco, Inc.
Heat-fusible gasket and method of manufacture

GB201204294D0
(en)

2012-03-12
2012-04-25
Pioneer Lining Technology Ltd
Electrofusion fitting

US9296153B2
(en)

2013-05-01
2016-03-29
Watts Water Technologies, Inc.
Portable system for bonding pipes

USD746956S1
(en)

2013-05-01
2016-01-05
Watts Water Technologies, Inc.
Tee fitting

EP3162538B1
(en)

2015-10-27
2019-07-31
Georg Fischer Rohrleitungssysteme AG
Electrofusion fitting

CN105799159A
(en)

2016-03-26
2016-07-27
宁波市宇华电器有限公司
Electric-molten pipe welding machine and electric-molten pipe welding method

CN105729790A
(en)

2016-03-26
2016-07-06
宁波市宇华电器有限公司
Pressurizing electric fusion welding device and method

GB2571924B
(en)

2018-03-07
2020-10-14
Subsea 7 Ltd
Electrofusion fittings for lined pipes

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US4117311A
(en)

1976-03-22
1978-09-26
Von Roll Ag.
Electric welding muff

CH632078A5
(en)

1978-09-12
1982-09-15
Von Roll Ag
Collar for connecting line elements

GB2090558B
(en)

1981-01-06
1984-08-30
British Gas Corp
Method of manufacture of a heat sealable fitting and fitting made by such method

1985

1985-10-24
GB
GB8526235A
patent/GB8526235D0/en
active
Pending

1986

1986-10-03
AU
AU63525/86A
patent/AU586038B2/en
not_active
Ceased

1986-10-07
NZ
NZ21782086A
patent/NZ217820A/en
unknown

1986-10-10
EP
EP19860114078
patent/EP0221396B1/en
not_active
Expired – Lifetime

1986-10-10
DE
DE8686114078T
patent/DE3669382D1/en
not_active
Expired – Fee Related

1986-10-10
ES
ES86114078T
patent/ES2011763B3/en
not_active
Expired – Lifetime

1986-10-10
AT
AT86114078T
patent/ATE50850T1/en
not_active
IP Right Cessation

1986-10-15
CA
CA000520457A
patent/CA1260663A/en
not_active
Expired

1986-10-21
US
US06/921,329
patent/US4727242A/en
not_active
Expired – Fee Related

1986-10-23
DK
DK508686A
patent/DK165521C/en
not_active
IP Right Cessation

1986-10-23
ZA
ZA868054A
patent/ZA868054B/en
unknown

Also Published As

Publication number
Publication date

EP0221396A1
(en)

1987-05-13

DK165521B
(en)

1992-12-07

US4727242A
(en)

1988-02-23

DK165521C
(en)

1993-04-26

ES2011763B3
(en)

1990-07-01

DK508686A
(en)

1987-04-25

CA1260663A
(en)

1989-09-26

EP0221396B1
(en)

1990-03-07

GB8526235D0
(en)

1985-11-27

DK508686D0
(en)

1986-10-23

ATE50850T1
(en)

1990-03-15

DE3669382D1
(en)

1990-04-12

AU586038B2
(en)

1989-06-29

ES2011763A4
(en)

1990-02-16

NZ217820A
(en)

1989-03-29

ZA868054B
(en)

1987-07-29

Contact information