US3782941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photothermographic element,composition and process
Assignee: Eastman Kodak Co
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Filing: 1972-07-18
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Granted: 1974-01-01
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Expires: 1992-07-18
Abstract
Abstract AN N-HYDROXYNAPHTHALIMIDE ACCELERATOR-TONING AGENT IN PHOTOERMORGRAPHIC ELEMENTS, COMPOSITIONS AND PROCESSES PROVIDES IMPROVED RESULTS IN SHORTER PROCESSING TIME AND AT LOWER CONCENTRATIONS. THE N-HYDROXYNAPTHALIMIDE COMPOUNDS CAN BE EMPLOYED IN PHOTOTHERMORGRAPHIC MATERIALS AND/OR THERMOGRAPHIC MATERIALS IN COMBINATION WITH REDUCING AGENTS. OTHER ADDENDA COMMONLY EMPLOYED IN PHOTOTHERMOGRAPHIC MATERIALS SUCH AS SENSITIZING DYES, IMAGE STABILIZERS AND STABLIZER PRECURSORS AND VARIOUS PHOTOSENSITIVE COMPOUNDS CAN BE EMPLOYED IN THE PHOTOTHERMOGRAPHIC MATERIALS ALSO.
Inventors
- 👤 P Hartman
- 👤 G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:58
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845; G03C1/4989; Y; Y10; Y10S; Y10S430/00; Y10S430/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |