Patent US3782938A successfully refreshed from Google Patents.
US3782938A
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Photosensitive element comprising polymers with cyclopropenyl groups and process
Assignee: Eastman Kodak Co
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Filing: 1971-11-30
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Granted: 1974-01-01
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Expires: 1991-11-30
Abstract
Abstract THERE IS DESCRIBED A NOVEL CLASS OF LIGHT-SENSITIVE POLYMERS AND THE USE OF THESE POLYMERS IN PHOTOSENSITIVE COMPOSITION ELEMENTS AND PROCESSES. THE POLYMERS HAVE APPENDED TO A POLYMER BACKBONE A LIGHT-SENSITIVE UNSATURATED CYCLIC GROUP WHICH IS A THREE TO SIX MEMBERED CARBOCYCLIC OR MONOCYCLIC HETEROCYCLIC RING CONTAINING AN ETHYLENIC DOUBLE BOND OR A FIVE TO SIX MEMBERED ETHYLENICALLY UNSATURATED CARBOCYCLIC OR HETEROCYCLIC RING FREE OF EXOCYCLIC DOUBLE BONDS AND FUSED TO AN AROMATOC RING OF THE BENZENE SERIES.
Inventors
- 👤 Boer C De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:07
CPC Classifications
C; C08; C08F; C08F8/00; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G59/1461; C08G75/00; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 0
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |