US3396022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinone stabilizers and antifoggants for silver halide emulsions
Assignee: GAF Corp
•
Filing: 1965-06-25
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Granted: 1968-08-06
•
Expires: 1985-06-25
Abstract
No abstract record available.
Inventors
- 👤 Dersch Fritz
- 👤 Sally L Paniccia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/305; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
AN AQUEOUS DEVELOPER SOLUTION CONTAINING A SILVER HALIDE PHOTOGRAPHIC DEVELOPIG AGENT AND AN ANTIFOGGANT AND STABILIZER COMPRISING A COMPOUND OF THE FOLLOWING GENERAL FORMULA:
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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |