Patent US3707377A successfully refreshed from Google Patents.
US3707377A
Expired / Lapsed
US
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Photothermic dry silver coatings stabilized with halogen-containing organic oxidizing agents
Assignee: 3M Co
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Filing: 1971-02-02
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Granted: 1972-12-26
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Expires: 1991-02-02
Abstract
Abstract LIGHT-SENSITIVE HEAT-DEVELOPABLE "DRY SILVER" SHEET MATERIALS ARE STABILIZED AGAINST BACKGROUND DISCOLORATION UNDER USE CONDITIONS BY INCORPORATION OF SELECTED HALOGENCONTAINING ORGANIC OXIDIZING AGENTS, E.G. TETRABROMOBUTANE.
Inventors
- 👤 George Van Dyke Tiers
- 👤 Joseph A Wiese Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:38
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49845
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |