Patent US3107174A successfully refreshed from Google Patents.
US3107174A
Expired / Lapsed
US
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Heat sensitive copy sheet and method of making
Assignee: 3M Co
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Filing: 1961-07-12
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Granted: 1963-10-15
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Expires: 1981-07-12
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Wartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:26
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498; G03C1/4989; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A SHEET PRODUCT USEFUL IN THE THERMOGRAPHIC REPRODUCTION OF GRAPHIC ORIGINALS AND HIGHLY RESISTANT TO DISCOLORATION UNDER ILLUMINATION AND UNDER HANDLING AND FINGERPRINTING, SAID SHEET INCLUDING AS AN ESSENTIAL IMAGEPRODUCING REACTANT COMPONENT FIVE PARTS BY VOLUME OF FINELY DIVIDED PARTICULATE SILVER SOAP REACTANT AND, HOMOGENEOUSLY ASSOCIATED THEREWITH, FROM ABOUT ONE TO ABOUT EIGHT PARTS OF ZINC OXIDE AND FROM ABOUT TWO TO ABOUT TWELVE PARTS OF SOLID FUSIBLE PURE HYDROCARBON THERMOPLASTIC TERPENE RESIN OF ZERO ACID NUMBER.
Claim 2
Dependent Claim
77 words
A SHEET PRODUCT USEFUL IN THE THERMOGRAPHIC REPRODUCTION OF GRAPHIC ORIGINALS AND HIGHLY RESISTANT TO DISCOLORATION UNDER ILLUMINATION AND UNDER HANDLING AND FINGERPRINTING, SAID SHEET INCLUDING AS AN ESSENTIAL IMAGEPRODUCING REACTANT COMPONENT FIVE PARTS BY VOLUME OF FINELY DIVIDED PARTICULATE SILVER SOAP REACTANT AND, HOMOGENEOUSLY ASSOCIATED THEREWITH, FROM ABOUT ONE TO ABOUT EIGHT PARTS OF ZINC OXIDE AND FROM ABOUT TWO TO ABOUT TWELVE PARTS OF SOLID FUSIBLE PURE HYDROCARBON THERMOPLASTIC TERPENE RESIN OF ZERO ACID NUMBER.
References Cited (Backward Citations)
US2910377A
Cited
US3031329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |