GB1528812A – Flexible plastics film packaging materials
– Google Patents
GB1528812A – Flexible plastics film packaging materials
– Google Patents
Flexible plastics film packaging materials
Info
Publication number
GB1528812A
GB1528812A
GB44826/75A
GB4482675A
GB1528812A
GB 1528812 A
GB1528812 A
GB 1528812A
GB 44826/75 A
GB44826/75 A
GB 44826/75A
GB 4482675 A
GB4482675 A
GB 4482675A
GB 1528812 A
GB1528812 A
GB 1528812A
Authority
GB
United Kingdom
Prior art keywords
plastics
plastics film
packaging materials
film packaging
flexible plastics
Prior art date
1974-11-26
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.)
Expired
Application number
GB44826/75A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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.)
1974-11-26
Filing date
1975-10-30
Publication date
1978-10-18
1975-10-30
Application filed by Union Carbide Corp
filed
Critical
Union Carbide Corp
1978-10-18
Publication of GB1528812A
publication
Critical
patent/GB1528812A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
B29C65/741—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area characterised by the relationships between the joining step and the severing step
B29C65/7411—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area characterised by the relationships between the joining step and the severing step characterised by the temperature relationship between the joining step and the severing step
B29C65/7412—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area characterised by the relationships between the joining step and the severing step characterised by the temperature relationship between the joining step and the severing step the joining step and the severing step being performed at different temperatures
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
B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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
B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
B29C65/30—Electrical means
B29C65/305—Electrical means involving the use of cartridge heaters
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
B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
B29C65/7457—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool comprising a perforating tool
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
B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
B29C66/43—Joining a relatively small portion of the surface of said articles
B29C66/431—Joining the articles to themselves
B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
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
B29C66/80—General aspects of machine operations or constructions and parts thereof
B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
B29C66/832—Reciprocating joining or pressing tools
B29C66/8322—Joining or pressing tools reciprocating along one axis
B—PERFORMING OPERATIONS; TRANSPORTING
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
B65D33/00—Details of, or accessories for, sacks or bags
B65D33/002—Rolls, strips or like assemblies of bags
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
B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
B—PERFORMING OPERATIONS; TRANSPORTING
B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B2155/00—Flexible containers made from webs
B31B2155/003—Flexible containers made from webs starting from tubular webs
B—PERFORMING OPERATIONS; TRANSPORTING
B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
B31B70/00—Making flexible containers, e.g. envelopes or bags
B31B70/74—Auxiliary operations
B31B70/92—Delivering
B31B70/94—Delivering singly or in succession
B31B70/946—Delivering singly or in succession the bags being interconnected
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
Y10T83/00—Cutting
Y10T83/04—Processes
Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
Y10T83/041—By heating or cooling
Y10T83/0414—At localized area [e.g., line of separation]
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
Y10T83/00—Cutting
Y10T83/04—Processes
Y10T83/0596—Cutting wall of hollow work
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
Y10T83/00—Cutting
Y10T83/283—With means to control or modify temperature of apparatus or work
Y10T83/293—Of tool
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
Y10T83/00—Cutting
Y10T83/384—By tool inside hollow work
Y10T83/403—With manually actuated means to position or facilitate positioning of work
Abstract
1528812 Plastics bags UNION CARBIDE CORP 30 Oct 1975 [26 Nov 1974] 44826/75 Heading B8K [Also in Division B5] A plastics bag 11 torn from a strip of flattened tubular oriented plastics film, e.g. biaxially oriented polyethylene or biaxially oriented polyvinylidene chloride, comprises, at the mouth thereof, annealed edge lengths 25 with tabs 19 between adjacent lengths 25. The bag bottom comprises a heat seal 15 and a tail 21 having notches 23 therein. The flattened tubular film may be seamless or may be formed from a folded longitudinally-sealed sheet.
GB44826/75A
1974-11-26
1975-10-30
Flexible plastics film packaging materials
Expired
GB1528812A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US52743074A
1974-11-26
1974-11-26
Publications (1)
Publication Number
Publication Date
GB1528812A
true
GB1528812A
(en)
1978-10-18
Family
ID=24101433
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB44826/75A
Expired
GB1528812A
(en)
1974-11-26
1975-10-30
Flexible plastics film packaging materials
Country Status (17)
Country
Link
US
(1)
US4064776A
(en)
JP
(1)
JPS5345747B2
(en)
AR
(1)
AR209944A1
(en)
AU
(1)
AU509312B2
(en)
BE
(1)
BE835920A
(en)
BR
(1)
BR7507772A
(en)
CA
(1)
CA1082508A
(en)
CH
(1)
CH603432A5
(en)
DE
(1)
DE2552792A1
(en)
DK
(1)
DK531575A
(en)
FR
(1)
FR2292629A1
(en)
GB
(1)
GB1528812A
(en)
IE
(1)
IE43899B1
(en)
IT
(1)
IT1049790B
(en)
NL
(1)
NL7513743A
(en)
NZ
(1)
NZ179351A
(en)
SE
(3)
SE7513261L
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2205277A
(en)
*
1987-03-18
1988-12-07
Ofrex Group Holdings Plc
A document holder
Families Citing this family (21)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CA1123566A
(en)
*
1977-02-09
1982-05-18
Eckhard C.A. Schwarz
Process and apparatus for stretching a tubularly-formed sheet of a thermoplastic material and the product produced thereby
US4241127A
(en)
*
1977-11-07
1980-12-23
The Dow Chemical Company
Starting tail for film rolls
US4169122A
(en)
*
1977-11-07
1979-09-25
The Dow Chemical Company
Method of forming starting tails for film rolls
US4243366A
(en)
*
1979-09-17
1981-01-06
The Dow Chemical Company
Apparatus for forming starting tail for film rolls
CA1177383A
(en)
*
1980-06-19
1984-11-06
Ernest H. Roberts
Process for cutting and perforating plastic film
AU548255B2
(en)
*
1981-05-19
1985-12-05
Aci Australia Limited
Flexible package
US4426029A
(en)
1981-12-30
1984-01-17
Union Carbide Corporation
Safety blade for severing stretchable film
US4450996A
(en)
*
1982-03-15
1984-05-29
Union Carbide Corporation
Safety blade for severing stretchable film
AT404350B
(en)
*
1992-03-24
1998-10-27
Hagleitner Betriebshygiene
ROLE OF RELATED SECTIONS AND DISPENSER FOR ROLLS OF THIS
DK171413B1
(en)
*
1994-01-31
1996-10-21
Gerstenberg & Agger As
Process for preventing cracking in packaged, plate-shaped crystalline products, for example butter or margarine, an extrusion equipment for use in the process and a package for use in the packaging
US6739370B2
(en)
2001-05-01
2004-05-25
V-Tek Incorporated
Floating heated packaging shoe
US6571850B2
(en)
2001-05-01
2003-06-03
V-Tek Incorporated
Floating anvil useable against a heat sealing shoe
US7171882B2
(en)
*
2003-10-15
2007-02-06
Amros Industries, Inc.
Knife-like cutting die
US20070157554A1
(en)
*
2005-12-19
2007-07-12
Liao Benker P
Plastic film sealing blade
WO2008058389A1
(en)
*
2006-11-17
2008-05-22
Liqui-Box Canada Inc.
A reslilient backing member for use with an impusle heating element
US20130102449A1
(en)
*
2011-10-19
2013-04-25
Jim Graboski
Perforation scoring on extruded film
JP6049185B2
(en)
*
2011-12-09
2016-12-21
株式会社日立メタルプレシジョン
Sheet bundle cutting device
PL2930031T3
(en)
2014-04-09
2018-07-31
Akzenta Paneele + Profile Gmbh
WPC decorative panel with low porosity profile edge and method for producing the same
CN104176326B
(en)
*
2014-08-15
2017-01-25
江苏申凯包装高新技术股份有限公司
Hot-sealing device for folding and winding machine
CN108555061A
(en)
*
2018-06-23
2018-09-21
东莞理工学院
A kind of pressing stripping and slicing collection all-in-one machine for capableing of health maintenance
BE1027759B1
(en)
*
2019-11-15
2021-06-17
Ace Packaging N V
Method for manufacturing a bag-shaped package
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US371736A
(en)
*
1887-10-18
Cutter for perforating-machines
US1518260A
(en)
*
1922-11-23
1924-12-09
Racine Confectioners Machinery
Rolls for candy-making machines
US1972133A
(en)
*
1933-10-21
1934-09-04
Barber Asphalt Co
Method and apparatus for producing roofing elements
US2748863A
(en)
*
1953-03-02
1956-06-05
Harold Z Benton
Perforating machine for thermoplastic films
US3590695A
(en)
*
1968-04-04
1971-07-06
Jiffy Mfg Co
Sheet perforating and joining system
1975
1975-10-21
CA
CA238,087A
patent/CA1082508A/en
not_active
Expired
1975-10-30
GB
GB44826/75A
patent/GB1528812A/en
not_active
Expired
1975-11-25
NZ
NZ179351A
patent/NZ179351A/en
unknown
1975-11-25
DE
DE19752552792
patent/DE2552792A1/en
not_active
Withdrawn
1975-11-25
DK
DK531575A
patent/DK531575A/en
not_active
Application Discontinuation
1975-11-25
IT
IT29634/75A
patent/IT1049790B/en
active
1975-11-25
AR
AR261341A
patent/AR209944A1/en
active
1975-11-25
BR
BR7507772A
patent/BR7507772A/en
unknown
1975-11-25
AU
AU86932/75A
patent/AU509312B2/en
not_active
Ceased
1975-11-25
NL
NL7513743A
patent/NL7513743A/en
not_active
Application Discontinuation
1975-11-25
JP
JP14036275A
patent/JPS5345747B2/ja
not_active
Expired
1975-11-25
SE
SE7513261A
patent/SE7513261L/en
not_active
Application Discontinuation
1975-11-25
CH
CH1526175A
patent/CH603432A5/xx
not_active
IP Right Cessation
1975-11-25
IE
IE2569/75A
patent/IE43899B1/en
unknown
1975-11-25
BE
BE162160A
patent/BE835920A/en
unknown
1975-11-25
FR
FR7535967A
patent/FR2292629A1/en
active
Granted
1976
1976-06-15
US
US05/696,297
patent/US4064776A/en
not_active
Expired – Lifetime
1982
1982-09-02
SE
SE8205009A
patent/SE8205009L/en
not_active
Application Discontinuation
1982-09-02
SE
SE8205010A
patent/SE8205010L/en
not_active
Application Discontinuation
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2205277A
(en)
*
1987-03-18
1988-12-07
Ofrex Group Holdings Plc
A document holder
GB2205277B
(en)
*
1987-03-18
1990-12-12
Ofrex Group Holdings Plc
Improvements in or relating to document holders
AU610569B2
(en)
*
1987-03-18
1991-05-23
Ofrex Group Holdings Plc
Improvements in or relating to document holders
Also Published As
Publication number
Publication date
US4064776A
(en)
1977-12-27
IE43899L
(en)
1976-05-26
AU8693275A
(en)
1977-06-02
AR209944A1
(en)
1977-06-15
FR2292629A1
(en)
1976-06-25
FR2292629B1
(en)
1980-01-25
NL7513743A
(en)
1976-05-31
SE8205010D0
(en)
1982-09-02
BE835920A
(en)
1976-05-25
IT1049790B
(en)
1981-02-10
SE8205010L
(en)
1982-09-02
JPS5177475A
(en)
1976-07-05
CH603432A5
(en)
1978-08-15
CA1082508A
(en)
1980-07-29
BR7507772A
(en)
1976-08-31
DK531575A
(en)
1976-09-27
AU509312B2
(en)
1980-05-08
NZ179351A
(en)
1978-07-10
DE2552792A1
(en)
1976-08-12
SE8205009D0
(en)
1982-09-02
SE7513261L
(en)
1976-05-28
IE43899B1
(en)
1981-07-01
JPS5345747B2
(en)
1978-12-08
SE8205009L
(en)
1982-09-02
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ES312883A1
(en)
1966-03-01
Gusseted plastic bag
GB1341644A
(en)
1973-12-25
Shrink wrapping of articles
FR2042399A1
(en)
1971-02-12
Plastic sack
GB1317453A
(en)
1973-05-16
Handle hole carrier bags
GB1367001A
(en)
1974-09-18
Plastics bag
GB1426713A
(en)
1976-03-03
Plastic bags
GB1481439A
(en)
1977-07-27
Bags
GB1302450A
(en)
1973-01-10
GB1383667A
(en)
1974-02-12
Carrying bag made of plastic film
GB1472004A
(en)
1977-04-27
Packaging bag for bread
GB1357359A
(en)
1974-06-19
Plastics shopping bag
GB1117423A
(en)
1968-06-19
Flat plastics bags and their manufacture
Legal Events
Date
Code
Title
Description
1979-02-07
PS
Patent sealed [section 19, patents act 1949]
1984-07-11
PCNP
Patent ceased through non-payment of renewal fee
