US3202512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic silver halide emulsions stabilized with tetrazaindene compounds
Assignee: Eastman Kodak Co
•
Filing: 1962-02-23
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Granted: 1965-08-24
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Williams Leslie Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A STABILIZING AMOUNT OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FOROMULA:
Claim 2
Dependent Claim
21 words
A PHOTOGRAPHIC SILVER HALIDE EMULSION CONTAINING A STABILIZING AMOUNT OF A COMPOUND SELECTED FROM THOSE REPRESENTED BY THE FOLLOWING GENERAL FOROMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |