US3705803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing color film with auxiliary or silver sound record using bleach inhibitor
Assignee: Eastman Kodak Co
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Filing: 1971-12-17
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Granted: 1972-12-12
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Expires: 1991-12-17
Abstract
Abstract A PROCESS IS PROVIDED FOR PREPARING COLOR FILM HAVING A SILVER AUXILIARY OR SOUND RECORD WHICH COMPRISES CONTACTING ONLY THE AUXILIARY OR SOUND RECORD AREA OF AN EXPOSED FILM HAVING SUCH A SILVER IMAGE SUBSEQUENT TO INITIAL DEVELOPMENT, AND PRIOR TO BLEACHING WITH A SILVER BLEACH INHIBITOR.
Inventors
- 👤 Michael J Bevis
- 👤 Hobson J Bello
- 👤 Carl F Holtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:54
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/24
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) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |