US3368899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion layers and elements
Assignee: EIDP Inc
•
Filing: 1964-10-13
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Granted: 1968-02-13
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Blake Ralph Kingsley
- 👤 Fan Roxy Ni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/492
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A PHOTOGRAPHIC EMULSION LAYER COMPRISING, BEFORE EXPOSURE TO ACTINIC RADIATION, LIGHT-SENSITIVE SILVER HALIDE CRYSTALS HAVING ASSOCIATED THEREWITH IN GREATER THAN FOGINHIBITING AMOUNTS OF SILVER MERCAPTIDE OF A SUBSTITUTED COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
32 words
A PHOTOGRAPHIC EMULSION LAYER COMPRISING, BEFORE EXPOSURE TO ACTINIC RADIATION, LIGHT-SENSITIVE SILVER HALIDE CRYSTALS HAVING ASSOCIATED THEREWITH IN GREATER THAN FOGINHIBITING AMOUNTS OF SILVER MERCAPTIDE OF A SUBSTITUTED 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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |