Patent US2968558A successfully refreshed from Google Patents.
US2968558A
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Thermo-reversible gels and photographic emulsions prepared therewith
Assignee: Eastman Kodak Co
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Filing: 1955-10-19
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Granted: 1961-01-17
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Expires: 1975-10-19
Abstract
No abstract record available.
Inventors
- 👤 Clavier Alain Charles Andre
- 👤 Pouradier Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:56
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/22; G03C7/25; G03C1/00; G03C1/005; G03C1/04; G03C1/053; G03C1/66; G03C1/76; G03C1/825; G03C1/835; Y; Y10; Y10S; Y10S526/00; Y10S526/93
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PHOTOGRAPHIC MATERIAL COMPRISING A DISPERSION OF SILVER HALIDE IN A THERMOREVERSIBLE WATER SOLUTION OF A POLYMER ESSENTIALLY CONSISTING OF THE FOLLOWING RECURRING UNITS:
Claim 2
Dependent Claim
24 words
A PHOTOGRAPHIC MATERIAL COMPRISING A DISPERSION OF SILVER HALIDE IN A THERMOREVERSIBLE WATER SOLUTION OF A POLYMER ESSENTIALLY CONSISTING OF THE FOLLOWING RECURRING UNITS:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |