US3740376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive polymer layers of vinyl alcohol polymers
Assignee: Agfa Gevaert AG
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Filing: 1970-10-27
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Granted: 1973-06-19
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Expires: 1990-10-27
Abstract
Abstract THE LIGHT SENSITIVITY OF CERTAIN PHOTOCROSSLINKABLE POLYMER LAYERS WHICH IN THE PRESENCE OF ORGANIC AZIDE COMPOUNDS AS CROSSLINKING AGENTS YIELD UPON EXPOSURE TO ACTINIC LIGHT CROSSLINKED UNSOLUBLE PRODUCTS IS SUBSTANTIALLY INCREASED IF PHOTOCROSSLINKABLE POLYMERS ARE USED WHICH CONTAIN AS SIDE CHAIN A BENZENE RING WHICH IS ON THE NUCLEUS METHYL OR METHYLENE SUBSTITUTED.
Inventors
- 👤 E Wolff
- 👤 G Kolf
- 👤 W Lassig
- 👤 E Seelig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:33
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/008; G03F7/012; G03F7/0125; C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |