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US3556781A Expired / Lapsed US ⏱️ 0.0 years remaining

Migration imaging process

Assignee: Xerox Corp
•
Filing: 1967-10-27
•
Granted: 1971-01-19
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Expires: 1987-10-27
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Abstract

Abstract A METHOD OF IMAGING WHICH COMPRISES PROVIDING AN IMAGING STRUCTURE HAVING A SUPPORT, AND AN OVERLAYER OF SOFTENABLE MATERIAL CONTAINING A PARTICULATE PHOTOSENSITIVE OVERLAYER, SELECTIVELY IMAGING A DESIRED PORTION OF SAID STRUCTURE BY FORMING A LATENT IMAGE ON SAID PORTION, DEVELOPING SAID LATENT IMAGE BY UNIFORM EXPOSURE TO A DEVELOPING AGENT, WHEREBY AN IMAGE IS FORMED BY THE SELECTIVE MIGRATION OF PHOTOSENSITIVE PARTICLES IN IMAGE CONFIGURATION, AND SELECTIVELY FORMING AT LEAST ONE ADDITIONAL LATENT IMAGE ON SAID IMAGING STRUCTURE, AND DEVELOPING SAID LATENT IMAGE BY UNIFORM EXPOSURE TO A DEVELOPING AGENT, WHEREBY AN ADDITIONAL IMAGE IS FORMED BY THE SELECTIVE MIGRATION OF PHOTOSENSITIVE PARTICLES IN IMAGE CONFIGURATION.

Inventors

  • 👤 Mortimer Levy
  • 👤 Arnold L Pundsack

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:43
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/06; G03G17/00; G03G17/10

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) 1974-01-18 1974-07-20 1975-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-18 1978-07-20 1979-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-18 1982-07-20 1983-01-19 $7700.00 Window Closed / Lapsed

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