US3592655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic emulsions and elements comprising a polymer of a disulfonate compound
Assignee: Eastman Kodak Co
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Filing: 1968-03-28
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Granted: 1971-07-13
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Expires: 1988-03-28
Abstract
Abstract NOVEL POLYMERIZABLE DISULFOALKYL ESTERS OF DICARBOXYLIC ACIDS AND POLYMERS THEREOF AND THEIR USE IN PHOTOGRAPHIC COMPOSITIONS ARE DISCLOSED.
Inventors
- 👤 Thomas K Dykstra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; C; C07; C07C; C07C309/00; C08; C08F; C08F28/00
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |