Patent US5075824A successfully refreshed from Google Patents.
Patent USRE27375E successfully refreshed from Google Patents.
USRE27375E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image receptor sheets containing organic silver salts and metal ion image
Assignee: —
•
Filing: 1970-07-20
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Granted: 1972-05-30
•
Expires: 1990-07-20
Abstract
Abstract METAL ION IMAGE AMPLIFIERS, SUCH AS STANNOUS STEARATE, ARE ADDED TO IMAGE (RECEPTOR) SHEETS CONTAINING ORGANIC SIVER SALTS AND REDUCING AGENTS, TO PROVIDE IMPROVED IMAGE APPEARANCE AND TO CONSERVE SILVER.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498
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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |