US2625494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive recording element
Assignee: Individual
•
Filing: 1948-05-05
•
Granted: 1953-01-13
•
Expires: 1968-05-05
Abstract
No abstract record available.
Inventors
- 👤 Morrison Montford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:49
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/32; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A HEAT SENSITIVE RECORDING ELEMENT COMPRISING A SUPPORT HAVING A COATING CONTAINING A LEAD CARBONATE AND A THIOUREA UNIFORMLY DISPERSED IN A BINDER CONTAINING A CELLULOSE DERIVATIVE SELECTED FROM THE ORGANIC-LIQUID SOLUBLE MEMBERS OF THE GROUP CONSISTING OF NITRO-ESTERS, THE ACETYLESTERS AND THE ETHERS OF CELLULOSE.
Claim 2
Dependent Claim
46 words
A HEAT SENSITIVE RECORDING ELEMENT COMPRISING A SUPPORT HAVING A COATING CONTAINING A LEAD CARBONATE AND A THIOUREA UNIFORMLY DISPERSED IN A BINDER CONTAINING A CELLULOSE DERIVATIVE SELECTED FROM THE ORGANIC-LIQUID SOLUBLE MEMBERS OF THE GROUP CONSISTING OF NITRO-ESTERS, THE ACETYLESTERS AND THE ETHERS OF CELLULOSE.
References Cited (Backward Citations)
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Cited
US1734519A
Cited
US1863834A
Cited
US1965453A
Cited
US2039302A
Cited
US1880449A
Cited
US1976302A
Cited
US2209087A
Cited
US2310946A
Cited
US2299693A
Cited
US2358839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |