Patent EP0545002A1 successfully refreshed from Google Patents.
US3669713A
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US
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Transfer elements and process for preparing same
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
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Filing: 1969-12-31
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Granted: 1972-06-13
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Expires: 1989-12-31
Abstract
Abstract A PRESSURE-SENSITIVE TRANSFER SHEET OR RIBBON COMPRISING A POROUS FABRIC HAVING ON THE SURFACE THEREOF A SPONGE LAYER OF A FOAMED SYNTHETIC THERMOPLASTIC RESIN, SAID FABRIC CONTAINING A SUPPLY OF PRESSURE-TRANSFERABLY INK. IN USE, THE INK IS EXUDED THROUGH THE SPONGE LAYER, WHICH IS PRESENT AT THE INK-RELEASING SURFACE, SO THAT THE PATTERN OF THE FILAMENTS OF THE FABRIC IS NOT TRANSMITTED TO THE FORMED IMAGES.
Inventors
- 👤 Douglas A Newman
- 👤 Allan T Schlotzhauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:34
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10; B41J; B41J31/00; B41J31/05; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/31504; Y10T428/31725; Y10T428/31739; Y10T428/31786; Y10T442/00; Y10T442/30; Y10T442/3325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |