Patent US2996382A successfully refreshed from Google Patents.
US2996382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic elements having improved sensitivity
Assignee: Eastman Kodak Co
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Filing: 1959-01-12
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Granted: 1961-08-15
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Expires: 1979-01-12
Abstract
No abstract record available.
Inventors
- 👤 George W Luckey
- 👤 John C Hoppe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/015; G03C1/035; G03C2001/03564
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE LIGHT-SENSITIVE PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, SAID PHOTOGRAPHIC ELEMENT COMPRISING UNFOGGED SURFACE IMAGE SILVER HALIDE GRAINS CONTAINING IODIDE (I) ADJACENT TO FOGGED INTERNAL IMAGE SILVER HALIDE GRAINS (II), SAID UNFOGGED SURFACE IMAGE SILVER HALIDE GRAINS (I) BEING SUCH AS TO CAUSE A TEST PORTION THEREOF, WHEN COATED AS A PHOTOGRAPHIC SILVER HALIDE EMULSION ON A TRANSPARENT SUPPORT AND UPON EXPOSURE TO A LIGHT-INTENSITY SCALE FOR A FIXED TIME BETWEEN .01 AND 1 SECOND AND DEVELOPMENT FOR 6 MINUTES AT 68*F. IN THE FOLLOWING DEVELOPER (A):
Claim 2
Dependent Claim
95 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND AT LEAST ONE LIGHT-SENSITIVE PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, SAID PHOTOGRAPHIC ELEMENT COMPRISING UNFOGGED SURFACE IMAGE SILVER HALIDE GRAINS CONTAINING IODIDE (I) ADJACENT TO FOGGED INTERNAL IMAGE SILVER HALIDE GRAINS (II), SAID UNFOGGED SURFACE IMAGE SILVER HALIDE GRAINS (I) BEING SUCH AS TO CAUSE A TEST PORTION THEREOF, WHEN COATED AS A PHOTOGRAPHIC SILVER HALIDE EMULSION ON A TRANSPARENT SUPPORT AND UPON EXPOSURE TO A LIGHT-INTENSITY SCALE FOR A FIXED TIME BETWEEN .01 AND 1 SECOND AND DEVELOPMENT FOR 6 MINUTES AT 68*F. IN THE FOLLOWING DEVELOPER (A):
References Cited (Backward Citations)
US2456955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |