Patent US2756146A successfully refreshed from Google Patents.
US2756146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitizer for photothermographic substances
Assignee: Individual
•
Filing: 1954-07-28
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Granted: 1956-07-24
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Expires: 1974-07-28
Abstract
No abstract record available.
Inventors
- 👤 Levy Marilyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:03
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/49836; G03C1/49863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PHOTOTHERMOGRAPHIC ELEMENT COMPRISING A COLLOID CARRIER HAVING DISPERSED THEREIN A MEMBER OF THE GROUP OF PHOTOTHERMOGRAPHIC SILVER SALTS CONSISTING OF SILVER SUCCINDIAMIDOXZIME, SILVER OXALATE SILVER CONSISTING OF SILVER ACETATE AND A MEMBER OF THE GROUP OF WETTING AGENTS CONACETATE AND A MEMBER OF THE GROUP OF WETTING AGENTS CONSISTING OF SODIUM LAURYL SULPHATE SODIUM 2-ETHYLHEXENE SULFONATE, SODIUM 2-ETHYLHEXENE SULFONATE, SODIUM TETRADECYL SULFATE, SODIUM DIOCTYL PHOSPHATE, SODIUM HEPTADECYL SULFATE, POLYETHYLENE GLYCOL ALKYL ETHERS.
Claim 2
Dependent Claim
73 words
A PHOTOTHERMOGRAPHIC ELEMENT COMPRISING A COLLOID CARRIER HAVING DISPERSED THEREIN A MEMBER OF THE GROUP OF PHOTOTHERMOGRAPHIC SILVER SALTS CONSISTING OF SILVER SUCCINDIAMIDOXZIME, SILVER OXALATE SILVER CONSISTING OF SILVER ACETATE AND A MEMBER OF THE GROUP OF WETTING AGENTS CONACETATE AND A MEMBER OF THE GROUP OF WETTING AGENTS CONSISTING OF SODIUM LAURYL SULPHATE SODIUM 2-ETHYLHEXENE SULFONATE, SODIUM 2-ETHYLHEXENE SULFONATE, SODIUM TETRADECYL SULFATE, SODIUM DIOCTYL PHOSPHATE, SODIUM HEPTADECYL SULFATE, POLYETHYLENE GLYCOL ALKYL ETHERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |