US3684512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic monobaths
Assignee: Eastman Kodak Co
•
Filing: 1971-02-08
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Granted: 1972-08-15
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Expires: 1991-02-08
Abstract
Abstract PHOTOGRAPHIC PAPERS NORMALLY EXHIBIT OBJECTIONABLE POST-PROCESSING CURL, THAT IS CURL AFTER PROCESSING AND DRYING. A MONOBATH WHICH REDUCES CURL CONTAINS A SILVER HALIDE SOLVENT, SILVER HALIDE DEVELOPING AGENT, ALKALI, A POLYETHYLENE OXIDE, SORBITOL AND DIETHANOLAMINE.
Inventors
- 👤 William J Cain
- 👤 Paul E Crough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:35
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/38; G03C5/383
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |