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US3671118A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for creating duplex reproductions

Assignee: Xerox Corp
•
Filing: 1969-12-24
•
Granted: 1972-06-20
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Expires: 1989-12-24
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Abstract

Abstract A DUPLEXING METHOD AND APPARATUS FOR PRODUCING DUPLICATE REPRODUCTIONS OF ORIGINAL SUBJECT MATTER ON OPPOSITE SURFACES OF A SUPPORT MATERIAL. TWO OPPOSITELY READING LATENT ELECTROSATIC IMAGES OF SUBJECT MATTER TO BE REPRODUCED ARE CREATED ON A PHOTOSENSITIVE SURFACE AND ARE DEVELOPED WITH DEVELOPER MATERIAL WHEREIN ONE OF THE IMAGES COMPRISES A RIGHT READING IMAGE WHICH IS TRANSFERRED TO STORAGE MEDIUM AFTER DEVELOPMENT. THE OTHER IMAGE BEING IN WRONG READING OR MIRROR FORM REMAINS ON THE PHOTOSENSITIVE SURFACE TO BE DIRECTLY TRANSFERRED THEREFROM IN ONE SIDE OF A SUPPORT MATERIAL WHEREUPON THE DEVELOPED IMAGE RETAINED ON THE STORAGE MEDIUM IS TRANSFERRED TO THE OTHER SIDE OF THE SUPPORT MATERIAL TO CREATE A DUPLEX REPRODUCTION.

Inventors

  • 👤 Joseph Fantuzzo
  • 👤 Frazer D Punnett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:31
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/232

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) 1975-06-20 1975-12-20 1976-06-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-06-20 1979-12-20 1980-06-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-06-20 1983-12-20 1984-06-20 $7700.00 Window Closed / Lapsed

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