GB9206686D0 - Photochromic filter assemblies - Google Patents

Photochromic filter assemblies

Info

Publication number
GB9206686D0
GB9206686D0 GB9206686A GB9206686A GB9206686D0 GB 9206686 D0 GB9206686 D0 GB 9206686D0 GB 9206686 A GB9206686 A GB 9206686A GB 9206686 A GB9206686 A GB 9206686A GB 9206686 D0 GB9206686 D0 GB 9206686D0
Authority
GB
United Kingdom
Prior art keywords
filter assemblies
photochromic filter
photochromic
assemblies
filter
Prior art date
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.)
Pending
Application number
GB9206686A
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE 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.)
Filing date
Publication date
Application filed by Pilkington PE Ltd filed Critical Pilkington PE Ltd
Priority to GB9206686A priority Critical patent/GB9206686D0/en
Publication of GB9206686D0 publication Critical patent/GB9206686D0/en
Priority to GB9509104A priority patent/GB2287099B/en
Priority to GB9306104A priority patent/GB2265471B/en
Pending legal-status Critical Current

Links

GB9206686A 1992-03-27 1992-03-27 Photochromic filter assemblies Pending GB9206686D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9206686A GB9206686D0 (en) 1992-03-27 1992-03-27 Photochromic filter assemblies
GB9509104A GB2287099B (en) 1992-03-27 1993-03-24 Photochromic filter assemblies
GB9306104A GB2265471B (en) 1992-03-27 1993-03-24 Photochromic filter assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9206686A GB9206686D0 (en) 1992-03-27 1992-03-27 Photochromic filter assemblies

Publications (1)

Publication Number Publication Date
GB9206686D0 true GB9206686D0 (en) 1992-05-13

Family

ID=10712951

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9206686A Pending GB9206686D0 (en) 1992-03-27 1992-03-27 Photochromic filter assemblies
GB9306104A Expired - Fee Related GB2265471B (en) 1992-03-27 1993-03-24 Photochromic filter assemblies

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9306104A Expired - Fee Related GB2265471B (en) 1992-03-27 1993-03-24 Photochromic filter assemblies

Country Status (1)

Country Link
GB (2) GB9206686D0 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266370A (en) * 1960-10-20 1966-08-16 Alvin M Marks Electro-thermo-phototropic compositions and apparatus
US3547545A (en) * 1965-05-11 1970-12-15 Saint Gobain Antiglare system and method
US3507552A (en) * 1965-12-01 1970-04-21 Us Navy Flashblindness protective apparatus

Also Published As

Publication number Publication date
GB2265471A (en) 1993-09-29
GB9306104D0 (en) 1993-05-12
GB2265471B (en) 1995-11-15

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