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US3717463A Expired / Lapsed US ⏱️ 0.0 years remaining

Electrophotographic multicolor copy developed receptor employing solubilizable dyes

Assignee: AB Dick Co
•
Filing: 1971-06-25
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Granted: 1973-02-20
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Expires: 1991-06-25
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Abstract

Abstract FOG-01 AN ELECTROPHOTOGRAPHIC PROCESS AND MATERIALS FOR THE PRODUCTION OF MULTI-COLOR COPIES OF A MULTI-COLOR ORGINAL IN WHICH AN ELECTROSTATIC CHARGE IS APPLIED TO A RECEPTOR SHEET HAVING A FACE PORTION SUBDIVIDED INTO PHOTOCONDUCTIVE SEGMENTS CONTAINING SENSITIZING COMPONENTS IN INTERSPERSED SEGMENTS WHICH COVER DIFFERENT PORTIONS OF THE VISIBLE LIGHT SPECTRUM AND IN WHICH EACH SUCH SEGMENT CONTAINS A SOLUBILIZABLE DYE COLOR CORRESPONDING TO THE COLOR OF THE SPECTRUM OTHER THAN THAT TO WHICH THE SEGMENT IS SENSITIZED AND IN WHICH THE EXPOSED RECEPTOR IS DEVELOPED WITH A TONER IN WHICH THE DYE COMPONENT IS SOLUBLE IN RESPONSE TO TONER ACTIVATION FOR TRANSFER OF DYE COLOR FROM THE DEVELOPED RECEPTOR TO COPY SHEETS BROUGHT INTO SURFACE CONTACT THEREWITH.

Inventors

  • 👤 F Bach
  • 👤 L Chapin
  • 👤 R Freed
  • 👤 T Cernoch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 08:02
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/01; G03G5/00; G03G5/12

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) 1976-02-20 1976-08-21 1977-02-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-20 1980-08-21 1981-02-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-20 1984-08-21 1985-02-20 $7700.00 Window Closed / Lapsed

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