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
2026-11-05 10:05
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)
US372637A
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 |