US3563738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copying process and materials
Assignee: Keuffel and Esser Co
•
Filing: 1967-10-16
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Granted: 1971-02-16
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Expires: 1987-10-16
Abstract
Abstract A PHOTOCOPYING AND REPRODUCTION MATERIAL USEFUL IN COPYING VARIOUS COLORS IS PROVIDED BY COMBINING A FIRST COMPONENT WHICH IS THERMALLY ACTIVATABLE TO A TACKY SUPER-COOLED STATE WITH A SECOND LIGHT-SENSITIVE COMPONENT WHICH, WHEN EXPOSED TO ACTINIC RADIATION, CHANGES THE HEAT-ACTIVATABILITY AND THERMAL PROPERTIES OF THE FIRST COMPONENT. ACTINIC EXPOSURE AND HEATING IN COMBINATION WITH THE APPLICATION OF CONTRASTING DUST DEVELOPMENT PROVIDES CLEAR COPIES OF ORIGINAL GRAPHICS. THE MATERIALS ARE USEFUL ALSO IN THE PRODUCTION OF MULTIPLE COPIES.
Inventors
- 👤 Kohei Itano
- 👤 Masashi Nakano
- 👤 Shoichiro Hoshino
- 👤 Akira Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:08
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/56; G03F; G03F7/00; G03F7/26; G03F7/28
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |