US3301678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stabilizing photographic images with heat
Assignee: Eastman Kodak Co
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Filing: 1964-05-28
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Granted: 1967-01-31
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Expires: 1984-05-28
Abstract
No abstract record available.
Inventors
- 👤 Wilbert J Humphlett
- 👤 Johnson Dee Lynn
- 👤 Grant M Haist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/43; C; C07; C07C; C07C323/00; C07C335/00; C07C335/30; C07C335/32; G03C1/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A SUBSTANTIALLY DRY STABILIZATION METHOD WHICH COMPRISES HEATING, AT A TEMPERATURE IN THE RANGE OF ABOUT 200* F. TO ABOUT 400*F., AN EXPOSED PHOTOGRAPHIC ELEMENT COMPRISING A PHOTOGRAPHIC SILIVER HALIDE EMULSION, AND CONTIGUOUS TO SAID SILVER HALIDE, AT LEAST ABOUT ONE MOLE PER MOLE OF SAID SILVER HALIDE OF A SULFUR-CONTAINING COMPOUND WHICH UPON SAID HEATINGS FORMS A COMPOUND THAT COMBINES WITH UNEXPOSED SILVER HALIDE TO FORM A SILVER MERCAPTIDE WHICH IS MORE STABLE TO LIGHT THAN SAID SILVER HALIDE.
Claim 2
Dependent Claim
80 words
A SUBSTANTIALLY DRY STABILIZATION METHOD WHICH COMPRISES HEATING, AT A TEMPERATURE IN THE RANGE OF ABOUT 200* F. TO ABOUT 400*F., AN EXPOSED PHOTOGRAPHIC ELEMENT COMPRISING A PHOTOGRAPHIC SILIVER HALIDE EMULSION, AND CONTIGUOUS TO SAID SILVER HALIDE, AT LEAST ABOUT ONE MOLE PER MOLE OF SAID SILVER HALIDE OF A SULFUR-CONTAINING COMPOUND WHICH UPON SAID HEATINGS FORMS A COMPOUND THAT COMBINES WITH UNEXPOSED SILVER HALIDE TO FORM A SILVER MERCAPTIDE WHICH IS MORE STABLE TO LIGHT THAN SAID SILVER HALIDE.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |