US3316095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hardeners for incorporated coupler emulsions
Assignee: Eastman Kodak Co
•
Filing: 1965-10-13
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Granted: 1967-04-25
•
Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 John H Van Campen
- 👤 James L Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/30; G03C7/00; G03C7/30; G03C7/392; G03C7/39208; G03C7/3924; G03C7/39272
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A PHOTOGRAPHIC ELEMENT WHIHCH COMPRISES A SUPPORT HAVING THEREON A PLURALITY OF LAYERS IN WHICH AT LEAST ONE OF SAID LAYERS CONTAINS GELATIN-SILVER AHLIDE PHOTOGRAPHIC EMULSION, AT LEAST ONE OF SAID LAYERS CONTAINS PYRAZOLONE COUPLER AND AT LEAST ONE OF SAID LAYERS CONTAINS A HARDENEER HAVING THE FORMULA
Claim 2
Dependent Claim
48 words
A PHOTOGRAPHIC ELEMENT WHIHCH COMPRISES A SUPPORT HAVING THEREON A PLURALITY OF LAYERS IN WHICH AT LEAST ONE OF SAID LAYERS CONTAINS GELATIN-SILVER AHLIDE PHOTOGRAPHIC EMULSION, AT LEAST ONE OF SAID LAYERS CONTAINS PYRAZOLONE COUPLER AND AT LEAST ONE OF SAID LAYERS CONTAINS A HARDENEER HAVING THE FORMULA
References Cited (Backward Citations)
US3060028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |