Patent US2729575A successfully refreshed from Google Patents.
US2729575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making same
Assignee: —
•
Filing: 1948-11-09
•
Granted: 1956-01-03
•
Expires: 1968-11-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:30
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/025; B41M5/04; B41M5/10; D; D06; D06F; D06F53/00; D06F53/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF MAKING A PRESSURE SENSITIVE TRANSFER ELEMENT WHICH INCLUDES THE STEPS OF APPLYING TO A BASE HAVING A PRESSURE SENSITIVE WAX-CARBON TRANSFER COATING THEREON INCLUDING A SOLUBLE DYE, A FIRST COATING ON SAID TRANSFER COATING COMPRISING A MAJOR PORTION OF A RESINOUS FILM-FORMING SUBSTANCE AND A SOLVENT THEREFOR WHICH IS A NON-SOLVENT FOR SAID DYE; DRYING SAID COATING BY EVAPORATING SAID SOLVENT; APPLYING A SECOND COATING ON SAID FIRST COATING COMPRISING A MAJOR PORTION OF WAX IN MOLTEN FORM; AND HARDENING SAID SECOND COATING BY COOLING THE SAME.
Claim 2
Independent Claim
90 words
THE METHOD OF MAKING A PRESSURE SENSITIVE TRANSFER ELEMENT WHICH INCLUDES THE STEPS OF APPLYING TO A BASE HAVING A PRESSURE SENSITIVE WAX-CARBON TRANSFER COATING THEREON INCLUDING A SOLUBLE DYE, A FIRST COATING ON SAID TRANSFER COATING COMPRISING A MAJOR PORTION OF A RESINOUS FILM-FORMING SUBSTANCE AND A SOLVENT THEREFOR WHICH IS A NON-SOLVENT FOR SAID DYE; DRYING SAID COATING BY EVAPORATING SAID SOLVENT; APPLYING A SECOND COATING ON SAID FIRST COATING COMPRISING A MAJOR PORTION OF WAX IN MOLTEN FORM; AND HARDENING SAID SECOND COATING BY COOLING THE SAME.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |