US3814607A
Expired / Lapsed
US
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Crystalline photopolymerizable compositions with improved storage life
Assignee: EIDP Inc
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Filing: 1972-08-07
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Granted: 1974-06-04
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Expires: 1992-08-07
Abstract
Abstract PREDOMINANTLY CRYSTALLINE PHOTOPOLYMERIZABLE COMPOSITIONS CONTAINING A REDUCING AGENT SUCH AS 4''-DIMETHYLAMINO-3-PROPIONYLOXYBENZOPHENONE HAVE EXCELLENT STORAGE LIFE WITHOUT SIGFICANT LOSS OF PHOTOGRAPHIC SPEED.
Inventors
- 👤 W Nebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:36
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |