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US3827906A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for developing an electrostatic latent image

Assignee: Fujifilm Holdings Corp
•
Filing: 1972-03-17
•
Granted: 1974-08-06
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Expires: 1992-03-17
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Abstract

Abstract A METHOD FOR DEVELOPING AN ELECTROSTATIC LATENT IMAGE ON A PHOTOCONDUCTIVE SURFACE COMPRISING APPLYING A LIQUID DEVELOPER MATERIAL USING A POROUS MATERIAL TO SAID ELECTROSTATIC LATENT IMAGE ON SAID PHOTOCONDUCTIVE SURFACE, THE IMPROVEMENT COMPRISING APPLYING SAID LIQUID DEVELOPER MATERIAL TO SAID PHOTOCONDUCTIVE SURFACE USING SAID POROUS MATERIAL BY KEEPING AT LEAST A PORTION OF SAID POROUS MATERIAL IN CONTACT WITH A RESERVOIR OF SAID LIQUID DEVELOPER MATERIAL AND CONTACTING SAID PHOTOCONDUCTIVE SURFACE CONTAINIG SAID ELECTROSTATIC LATENT IMAGE THEREON WITH ANOTHER PORTION OF SAID POROUS MATERIAL AND THE IMPROVEMENT FURTHER COMPRISING SAID LIQUID DEVELOPER BEING A SUSPENSION OF A GRAFT PIGMENT IN AN INSULATING LIQUID IS DISCLOSED.

Inventors

  • 👤 M Sato
  • 👤 Y Tamai

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 22:39
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/12; G03G9/13; G03G9/133; G03G15/00; G03G15/06; G03G15/10; G03G15/101; G03G9/09; G03G9/0902; G03G9/0904

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) 1977-08-05 1978-02-04 1978-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-05 1982-02-04 1982-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-05 1986-02-04 1986-08-06 $7700.00 Window Closed / Lapsed

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