Patent US3345167A successfully refreshed from Google Patents.
US3345167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic compositions, products and processes
Assignee: Polaroid Corp
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Filing: 1964-04-27
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Granted: 1967-10-03
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Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Green Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:39
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/04; G03C8/06; G03C8/42; G03C8/44; G03C8/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE PHOTOGRAPHIC PROCESS WHICH COMPRISES THE STEPS OF EXPOSING A PHOTOSENSITIVE GELATINO SILVER HALIDE EMULSION; DEVELOPING EXPOSED A SILVER HALIDE IN SAID PHOTOSENSITIVE EMULSION WITH AN AQUEOUS SOLUTION, DISTRIBUTED INTERMEDIATE SAID EMULSION AND A SUPERPOSED PRINT-RECEIVING LAYER COMPRISING A SILICEOUS MATRIX CONTAINING SILVER PRECIPITATING AGENTS, COMPRISING, IN COMBINATION, ABOUT:
Claim 2
Dependent Claim
49 words
THE PHOTOGRAPHIC PROCESS WHICH COMPRISES THE STEPS OF EXPOSING A PHOTOSENSITIVE GELATINO SILVER HALIDE EMULSION; DEVELOPING EXPOSED A SILVER HALIDE IN SAID PHOTOSENSITIVE EMULSION WITH AN AQUEOUS SOLUTION, DISTRIBUTED INTERMEDIATE SAID EMULSION AND A SUPERPOSED PRINT-RECEIVING LAYER COMPRISING A SILICEOUS MATRIX CONTAINING SILVER PRECIPITATING AGENTS, COMPRISING, IN COMBINATION, ABOUT:
References Cited (Backward Citations)
US2893355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |