US3671258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed increasing combination of stabilizers for radiographic elements
Assignee: Eastman Kodak Co
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Filing: 1971-01-11
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Granted: 1972-06-20
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Expires: 1991-01-11
Abstract
Abstract A RADIOGRAPHIC ELEMENT, WHICH COMPRISES A SUPPORT HAVING THEREON AT LEAST ONE SILVER HALIDE LAYER, WHEREIN SAID HALIDE COMPRISES AT LEAST ABOUT 50 MOLE PERCENT CHLORIDE, A SULFOCATECHOL AND A TETRAZAINDENE, SHOWS AN INCREASE IN SPEED. IN A PREFERRED EMBODIMENT SAID ELEMENT HAS A TOTAL SILVER COVERAGE OF AT LEAST ABOUT 100 MG. PER SQUARE FOOT PER SILVER HALIDE LAYER.
Inventors
- 👤 Robert C Taber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/09; G03C1/10; Y; Y10; Y10S; Y10S430/00; Y10S430/167
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |