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US3741758A
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Migration imaging employing pressure nip development
Assignee: Xerox Corp
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Filing: 1970-12-14
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Granted: 1973-06-26
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Expires: 1990-12-14
Abstract
Abstract A PROCESS FOR REMOVING BACKGROUND FROM A MIGRATION IMAGE MEMBER COMPRISING A LAYER OF SOFTENABLE MATERIAL AND MIGRATION MATERIAL SELECTIVELY DISTRIBUTED IN DEPTH IN SAID SOFTENBLE MATERIAL WITH SOME BACKGROUND MATERIAL BY EXTRUDING AWAY THE BACKGROUND MATERIAL AND CONTIGUOUS PORTIONS OF SOFTAENABLE MATERIAL, FOR EXAMPLE, BY PASSING THE MIGRATION IMAGE MEMBER THROUGH A PRESSURE NIP WHEREIN SOME OF THE SOFTENABLE MATERIAL IS EXTRUDED IN FRONT OF THE NIP CARRYING WITH IT THE UNMIGRATED PARTICLES.
Inventors
- 👤 T Chrzanowski
- 👤 B Grushkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:15
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/10
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |