Patent US3243312A successfully refreshed from Google Patents.
US3243312A
Expired / Lapsed
US
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Direct-transfer copy sheet
Assignee: W Koreska GmbH
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Filing: 1962-10-08
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Granted: 1966-03-29
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Expires: 1982-10-08
Abstract
No abstract record available.
Inventors
- 👤 Schutzner Walter
- 👤 Mock Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:30
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; B; B41; B41L; B41L1/00; B41L1/20; B41L1/36; B41M; B41M5/00; B41M5/10; B41M5/124; B41M5/132; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
DIRECT-TRANSFER COPY MATERIAL COMPRISING A PLURALITY OF SUPERIMPOSED SHEETS, EACH HAVING AN UPPER AND A LOWER SURFACE; A LAYER OF COLOR-ACCEPTOR AGENT HAVING A MAJOR PROPORTION OF WAX AND INCLUDING A METAL SOAP IN SUFFICIENT QUANTITY TO FACILITATE DRYING OF INK DEPOSITED UPON SAID LAYER OF COLOR-ACCEPTOR AGENT; AND A COLOR-TRANSFER LAYER ON THE LOWER SURFACE OF SAID SUBSTRATE ADAPTED TO PREFERENTIALLY IMPART COLOR TO A LAYER OF COLOR-ACCEPTOR AGENT ON THE UPPER SURFACE OF AN IDENTICAL UNDERLYING SHEET.
Claim 2
Dependent Claim
79 words
DIRECT-TRANSFER COPY MATERIAL COMPRISING A PLURALITY OF SUPERIMPOSED SHEETS, EACH HAVING AN UPPER AND A LOWER SURFACE; A LAYER OF COLOR-ACCEPTOR AGENT HAVING A MAJOR PROPORTION OF WAX AND INCLUDING A METAL SOAP IN SUFFICIENT QUANTITY TO FACILITATE DRYING OF INK DEPOSITED UPON SAID LAYER OF COLOR-ACCEPTOR AGENT; AND A COLOR-TRANSFER LAYER ON THE LOWER SURFACE OF SAID SUBSTRATE ADAPTED TO PREFERENTIALLY IMPART COLOR TO A LAYER OF COLOR-ACCEPTOR AGENT ON THE UPPER SURFACE OF AN IDENTICAL UNDERLYING SHEET.
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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |