US3554757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized photographic silver halide composition
Assignee: Konica Minolta Inc
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Filing: 1967-05-19
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Granted: 1971-01-12
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Expires: 1987-05-19
Abstract
Abstract PHOTOGRAPHIC COMPOSITIONS CONTAINING A LIGHT-SENSITIVE PHOTOGRAPHIC SUBSTANCE SUCH AS A SILVER HALIDE, AND PHOTOGRAPHIC FILM, PAPER OR PLATE BEARING SUCH A SUBSTANCE, ARE STABILIZED AGAINST DETERIORATION IN STORAGE, BY INCLUDING CERTAIN TRIAZOLOPYRIDAZINE COMPOUNDS IN THE COMPOSITIONS.
Inventors
- 👤 Yoshimi Kuwabara
- 👤 Sadao Sugita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |