US3563754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic process
Assignee: Eastman Kodak Co
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Filing: 1966-11-23
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Granted: 1971-02-16
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Expires: 1986-11-23
Abstract
Abstract PHOTOGRAPHIC EMULSIONS DESENSITIZED WITH A DYE, HETEROCYCLIS COMPOUND OR HEAVY METAL SALT AREW RESENSITIZED WITH A TETRAZOLE, A TRIAZAINDENE, A TETRAZAINDENE, A PENTAZAINDENE, A PYRRIDINE OR A CYCLIC DISULFIDE.
Inventors
- 👤 Jean E Jones
- 👤 Judith A Schwan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:59
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/36
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |