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US3723110A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrophotographic process

Assignee: Xerox Corp
•
Filing: 1970-12-21
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Granted: 1973-03-27
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Expires: 1990-12-21
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Abstract

Abstract AN ELECTROPHOTOGRAPHIC PLATE AND IMAGING PROCESS ARE DISCLOSED. THE PLATE COMPRISES A CONDUCTIVE SUBSTRATE COATED WITH A THICK ORGANIC INSULATING LAYER OVERCOATED WITH A THIN PHOTOCONDUCTIVE LAYER. IMAGES MAY BE FORMED BY ELECTROSTATICALLY CHARGING THE PLATE, EXPOSING IT TO AN IMAGE AND DEVELOPING WITH ELECTROSCOPIC MARKING METERIAL.

Inventors

  • 👤 W Goffe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 20:42
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/14; G03G5/142; G03G15/00; G03G15/22; G03G15/225; G03G5/02; G03G5/04; G03G5/043; G03G5/0436

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) 1976-03-26 1976-09-25 1977-03-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-26 1980-09-25 1981-03-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-26 1984-09-25 1985-03-27 $7700.00 Window Closed / Lapsed

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