DE68902923D1 - Photographisches material, geschuetzt gegen cyanwasserstoffgas. - Google Patents
Photographisches material, geschuetzt gegen cyanwasserstoffgas.Info
- Publication number
- DE68902923D1 DE68902923D1 DE8989907556T DE68902923T DE68902923D1 DE 68902923 D1 DE68902923 D1 DE 68902923D1 DE 8989907556 T DE8989907556 T DE 8989907556T DE 68902923 T DE68902923 T DE 68902923T DE 68902923 D1 DE68902923 D1 DE 68902923D1
- Authority
- DE
- Germany
- Prior art keywords
- hydrogen gas
- protected against
- photographic material
- cyan hydrogen
- against cyan
- 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.)
- Expired - Fee Related
Links
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20891188A | 1988-06-20 | 1988-06-20 | |
US07/352,322 US4892808A (en) | 1988-06-20 | 1989-05-12 | Photographic material protected against hydrogen cyanide gas |
PCT/US1989/002519 WO1989012847A1 (en) | 1988-06-20 | 1989-06-12 | Photographic material protected against hydrogen cyanide gas |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68902923D1 true DE68902923D1 (de) | 1992-10-22 |
DE68902923T2 DE68902923T2 (de) | 1993-04-22 |
Family
ID=27376159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1989602923 Expired - Fee Related DE68902923T2 (de) | 1988-06-20 | 1989-06-12 | Photographisches material, geschuetzt gegen cyanwasserstoffgas. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE68902923T2 (de) |
-
1989
- 1989-06-12 DE DE1989602923 patent/DE68902923T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE68902923T2 (de) | 1993-04-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |