GB1540471A

GB1540471A – Photochromic glasses
– Google Patents

GB1540471A – Photochromic glasses
– Google Patents
Photochromic glasses

Info

Publication number
GB1540471A

GB1540471A
GB3813/76A
GB381376A
GB1540471A
GB 1540471 A
GB1540471 A
GB 1540471A
GB 3813/76 A
GB3813/76 A
GB 3813/76A
GB 381376 A
GB381376 A
GB 381376A
GB 1540471 A
GB1540471 A
GB 1540471A
Authority
GB
United Kingdom
Prior art keywords
photochromic glasses
photochromic
glasses
Prior art date
1976-01-30
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
GB3813/76A
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.)

Pilkington Group Ltd

Original Assignee
Pilkington Brothers 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.)
1976-01-30
Filing date
1976-01-30
Publication date
1979-02-14

1976-01-30
Application filed by Pilkington Brothers Ltd
filed
Critical
Pilkington Brothers Ltd

1976-01-30
Priority to GB3813/76A
priority
Critical
patent/GB1540471A/en

1977-01-25
Priority to CA270,454A
priority
patent/CA1087436A/en

1977-01-26
Priority to NL7700770A
priority
patent/NL7700770A/en

1977-01-28
Priority to DD7700197140A
priority
patent/DD128805A5/en

1977-01-28
Priority to IT67196/77A
priority
patent/IT1117103B/en

1977-01-28
Priority to FR7702369A
priority
patent/FR2339579A1/en

1977-01-28
Priority to BR7700545A
priority
patent/BR7700545A/en

1977-01-31
Priority to US05/764,314
priority
patent/US4088501A/en

1977-01-31
Priority to JP884777A
priority
patent/JPS52107016A/en

1977-01-31
Priority to DE19772703860
priority
patent/DE2703860A1/en

1977-01-31
Priority to CS77624A
priority
patent/CS199285B2/en

1977-12-31
Priority to AR266375A
priority
patent/AR211949A1/en

1979-02-14
Publication of GB1540471A
publication
Critical
patent/GB1540471A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

C—CHEMISTRY; METALLURGY

C03—GLASS; MINERAL OR SLAG WOOL

C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS

C03C4/00—Compositions for glass with special properties

C03C4/04—Compositions for glass with special properties for photosensitive glass

C03C4/06—Compositions for glass with special properties for photosensitive glass for phototropic or photochromic glass

C—CHEMISTRY; METALLURGY

C03—GLASS; MINERAL OR SLAG WOOL

C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS

C03C3/00—Glass compositions

C03C3/04—Glass compositions containing silica

C03C3/062—Glass compositions containing silica with less than 40% silica by weight

GB3813/76A
1976-01-30
1976-01-30
Photochromic glasses

Expired

GB1540471A
(en)

Priority Applications (12)

Application Number
Priority Date
Filing Date
Title

GB3813/76A

GB1540471A
(en)

1976-01-30
1976-01-30
Photochromic glasses

CA270,454A

CA1087436A
(en)

1976-01-30
1977-01-25
Boron free alumino-phosphate photochromic glass composition containing dispersed silver halide crystals

NL7700770A

NL7700770A
(en)

1976-01-30
1977-01-26

IMPROVEMENTS RELATING TO LIGHT-SENSITIVE CHROME GLASSES.

DD7700197140A

DD128805A5
(en)

1976-01-30
1977-01-28

PHOTO COLOR GLASSES

IT67196/77A

IT1117103B
(en)

1976-01-30
1977-01-28

PHOTOCHROMATIC GLASS

FR7702369A

FR2339579A1
(en)

1976-01-30
1977-01-28

IMPROVEMENTS TO PHOTOCHROMIC GLASSES WITH ALUMINOPHOSPHATE AND SILVER HALOGENIDE FREE OF BORON

BR7700545A

BR7700545A
(en)

1976-01-30
1977-01-28

PHOTOCHROMIC ALUMINOPHOSPHATE GLASS, HAVING SILVER HALOGENIDE CRYSTALS DISPERSED THROUGH IT

US05/764,314

US4088501A
(en)

1976-01-30
1977-01-31
Photochromic alumino-phosphate glasses

JP884777A

JPS52107016A
(en)

1976-01-30
1977-01-31
Photochromic glass

DE19772703860

DE2703860A1
(en)

1976-01-30
1977-01-31

PHOTOCHROMES, BORON-FREE ALUMINOPHOSPHATE GLASS

CS77624A

CS199285B2
(en)

1976-01-30
1977-01-31
Photochromic boron-free aluminosiliceous glass

AR266375A

AR211949A1
(en)

1976-01-30
1977-12-31

PHOTOCHROMIC GLASSES

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB3813/76A

GB1540471A
(en)

1976-01-30
1976-01-30
Photochromic glasses

Publications (1)

Publication Number
Publication Date

GB1540471A
true

GB1540471A
(en)

1979-02-14

Family
ID=9765391
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB3813/76A
Expired

GB1540471A
(en)

1976-01-30
1976-01-30
Photochromic glasses

Country Status (12)

Country
Link

US
(1)

US4088501A
(en)

JP
(1)

JPS52107016A
(en)

AR
(1)

AR211949A1
(en)

BR
(1)

BR7700545A
(en)

CA
(1)

CA1087436A
(en)

CS
(1)

CS199285B2
(en)

DD
(1)

DD128805A5
(en)

DE
(1)

DE2703860A1
(en)

FR
(1)

FR2339579A1
(en)

GB
(1)

GB1540471A
(en)

IT
(1)

IT1117103B
(en)

NL
(1)

NL7700770A
(en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

BR8006255A
(en)

*

1979-10-12
1981-04-14
Pilkington Brothers Ltd

PHOTOCHROMIC ALUMINUM PHOSPHATE GLASS

DE3204625C2
(en)

*

1982-02-10
1986-07-10
Schott Glaswerke, 6500 Mainz

Alumosilico-phosphate spectacle lens with an Abbe number over 46, with a refractive index over 1.56 and a very low density

US4549894A
(en)

*

1984-06-06
1985-10-29
Corning Glass Works
Ultraviolet absorbing photochromic glass of low silver content

JPH0451968U
(en)

*

1990-09-11
1992-05-01

US5589285A
(en)

*

1993-09-09
1996-12-31
Technology Management, Inc.
Electrochemical apparatus and process

US5445903A
(en)

*

1993-09-09
1995-08-29
Technology Management, Inc.
Electrochemical apparatus

JP3883527B2
(en)

2003-07-17
2007-02-21
ニプロ株式会社

Transfer needle

BR112014011561A2
(en)

2011-11-16
2017-05-09
Corning Inc

cracking initiation high threshold ion exchange glass

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3615761A
(en)

*

1968-01-31
1971-10-26
Ppg Industries Inc
Phototropic articles containing thallous halide

GB1367903A
(en)

*

1971-07-12
1974-09-25
Pilkington Brothers Ltd
Photochromic glasses

AR204329A1
(en)

*

1974-02-01
1975-12-22
Jenaer Glaswerk Schott & Gen

PHOTOTROPICAL GLASS FREE OF FLUORINE AND BORIC ACID

1976

1976-01-30
GB
GB3813/76A
patent/GB1540471A/en
not_active
Expired

1977

1977-01-25
CA
CA270,454A
patent/CA1087436A/en
not_active
Expired

1977-01-26
NL
NL7700770A
patent/NL7700770A/en
not_active
Application Discontinuation

1977-01-28
BR
BR7700545A
patent/BR7700545A/en
unknown

1977-01-28
DD
DD7700197140A
patent/DD128805A5/en
unknown

1977-01-28
FR
FR7702369A
patent/FR2339579A1/en
active
Granted

1977-01-28
IT
IT67196/77A
patent/IT1117103B/en
active

1977-01-31
US
US05/764,314
patent/US4088501A/en
not_active
Expired – Lifetime

1977-01-31
CS
CS77624A
patent/CS199285B2/en
unknown

1977-01-31
JP
JP884777A
patent/JPS52107016A/en
active
Granted

1977-01-31
DE
DE19772703860
patent/DE2703860A1/en
not_active
Withdrawn

1977-12-31
AR
AR266375A
patent/AR211949A1/en
active

Also Published As

Publication number
Publication date

CS199285B2
(en)

1980-07-31

JPS52107016A
(en)

1977-09-08

CA1087436A
(en)

1980-10-14

AR211949A1
(en)

1978-04-14

US4088501A
(en)

1978-05-09

FR2339579B1
(en)

1982-05-14

IT1117103B
(en)

1986-02-10

DD128805A5
(en)

1977-12-14

BR7700545A
(en)

1977-10-04

JPS569464B2
(en)

1981-03-02

NL7700770A
(en)

1977-08-02

DE2703860A1
(en)

1977-08-25

FR2339579A1
(en)

1977-08-26

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(en)

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(en)

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(en)

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(en)

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(en)

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Alkaliiproof glass

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(en)

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Lens

Legal Events

Date
Code
Title
Description

1979-06-20
PS
Patent sealed [section 19, patents act 1949]

1985-09-25
PCNP
Patent ceased through non-payment of renewal fee

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