US3700458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical process
Assignee: Eastman Kodak Co
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Filing: 1971-03-01
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Granted: 1972-10-24
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Expires: 1991-03-01
Abstract
Abstract NOBLE METAL SALTS OF CARBOXYLIC ACIDS SUITABLE FOR USE IN PHOTOSENSITIVE AND THERMOSENSITIVE COMPOSITION AND ELEMENTS ARE PREPARED BY ADMIXING A NON-AQUEOUS SOLUTION OF A NOBLE METAL TRIFLUOROACETATE OR TETRAFLUOROBORATE WITH A NON-AQUEOUS SOLUTION OF A CARBOXYLIC ACID IN THE PRESENCE OF AN ORGANIC PEPTIZER. PHOTOSENSITIVE AND THERMOSENSITIVE COMPOSITIONS CAN BE MADE BY ADMIXING A NON-AQUEOUS DISPERSION OF A NOBLE METAL SALT OF AN ORGANIC ACID, SUCH AS SILVER BEHENATE, WITH A SUITABLE ORGANIC REDUCING AGENT AND A CATALYST. THE COMPOSITIONS CAN CONTAIN ADDENDA SUITABLE IN PHOTOSENSITIVE AND THERMOSENSITIVE COMPOSITIONS AND ELEMENTS.
Inventors
- 👤 Robert D Lindholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/41; C07C51/412; G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49809
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |