Patent US3600210A successfully refreshed from Google Patents.
US3600210A
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US
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Assignee: Huntington Alloys Corp
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Filing: 1968-02-26
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Granted: 1971-08-17
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Expires: 1988-02-26
Abstract
Abstract POSITIVE XEROGRAPHIC TRANSPARENCIES ARE PRODUCED BY TRANSFERRING THE IMAGE-FORMING THERMOPLASTIC POWDER (TONER) PARTICLES FROM A PHOTOSENSITIVE SURFACE TO A TRANSPARENT FILM, HEATING THE IMAGE AND THE FILM TO A TEMPERATURE ONLY SUFFICIENT TO SOFTEN THE THERMOPLASTIC TONER PARTICLES WITHOUT DAMAGING THE TRANSPARENT FILM AND THEN, IN A SEPARATE OPERATION, HEATING AND PRESSING THE IMAGEBEARING FILM TO FUSE THE PARTICLES TO THE FILM AND TO PROVIDE A SHARP TRANPARENT COPY.
Inventors
- 👤 Barry Francis Haycock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:16
CPC Classifications
G; G03; G03G; G03G7/00; G03G13/00; G03G13/22; G03G13/26
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |