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US3672758A Expired / Lapsed US ⏱️ 0.0 years remaining

Device and method for handling a flexible photoconductor

Assignee: Eastman Kodak Co
•
Filing: 1970-04-24
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Granted: 1972-06-27
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Expires: 1990-04-24
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Abstract

Abstract A FLEXIBLE PHOTOCONDUCTIVE SHEET SUPPORTED BY OPPOSITE ENDS OVER A PLATEN FOR SUPPORTING A RECEIVING SHEET WHEREIN THE PHOTO CONDUCTIVE SHEET IS LOWERED WHILE AN ELECTRIC POTENTIAL IS APPLIED BETWEEN IT AND THE PLATEN TO CREATE AN ELECTRIC FIELD THEREBETWEEN. FIRST, ONE END OF THE PHOTOCONDUCTIVE SHEET IS BROUGHT INTO LINE CONTACT WITH THE RECEIVING SHEET AND HELD THERE-AGAINST BY ELECTROSTATIC FORCE. THEN, AS THE OTHER END IS LOWERED, THE PHOTOCONDUCTIVE SHEET PROGRESSIVELY CONTACTS THE RECEIVING SHEET, FORCING ANY AIR OUT FROM BE TWEEN THE SHEETS SO THAT THEY ARE HELD IN INTIMATE CONTACT BY THE ELECTROSTATIC FORCE. A CLAMPING MECHANISM IS USED TO HOLD THE RECEIVING SHEET DURING SEPARATION FROM THE PHOTOCONDUCTIVE SHEET FOLLOWING EXPOSURE TO AN ELECTROSTATIC IMAGE.

Inventors

  • 👤 William A Macdonald Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 20:39
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/05

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-06-27 1975-12-27 1976-06-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-27 1979-12-27 1980-06-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-27 1983-12-27 1984-06-27 $7700.00 Window Closed / Lapsed

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