Patent US3598602A successfully refreshed from Google Patents.
US3598602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-triazolo(4,3-beta)-s-triazoles and derivatives as antifoggants for photographic emulsions
Assignee: Eastman Kodak Co
•
Filing: 1969-10-07
•
Granted: 1971-08-10
•
Expires: 1989-10-07
Abstract
Abstract 7H-S-TRIAZOLO-(4,3-B)-S-TRIAZOLE AND 5H-S-TRIAZOLO-(4,3B)-S-TRIAZOLE AND THEIR DERIVATIVES ARE USED WITH PHOTOGRAPHIC SILVER HALIDE ELEMENTS AN EMULSIONS IN ORDER TO STABILIZE SAID ELEMENTS AND EMULSIONS AGAINST FOG.
Inventors
- 👤 Derek D Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:31
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |