US3305362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for developing silver halide and compositions therefor
Assignee: Agfa Gevaert NV
•
Filing: 1963-02-26
•
Granted: 1967-02-21
•
Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Riester Oskar
- 👤 Stracke Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:44
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D263/60; C07D265/00; C07D265/04; C07D265/12; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/72; C07D277/84; C07D293/00; C07D293/10; C07D293/12; G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/34; G03C1/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC IMAGES BY EXPOSING A SUPPORTED LIGHT-SENSITIVE SILVER HALIDE EMULSION, DEVELOPING AND FIXING THE EXPOSED LAYER, THE IMPROVEMENT CONSISTING IN DEVELPING THE EXPOSED SILVER HALIDE EMULSION LAYER IN EFFECTIVE CONTACT WITH A STABILIZING COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
44 words
IN A PROCESS FOR THE PRODUCTION OF PHOTOGRAPHIC IMAGES BY EXPOSING A SUPPORTED LIGHT-SENSITIVE SILVER HALIDE EMULSION, DEVELOPING AND FIXING THE EXPOSED LAYER, THE IMPROVEMENT CONSISTING IN DEVELPING THE EXPOSED SILVER HALIDE EMULSION LAYER IN EFFECTIVE CONTACT WITH A STABILIZING COMPOUND OF THE FORMULA:
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |