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US3933491A Expired / Lapsed US ⏱️ 0.0 years remaining

Imaging system

Assignee: Xerox Corp
•
Filing: 1971-09-20
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Granted: 1976-01-20
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Expires: 1991-09-20
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Abstract

Abstract An imaging system using a migration imaging member comprising a softenable photoconductive material with a fracturable layer of migration marking material contacting the softenable photoconductive material and having the fracturable layer spaced apart from at least one surface of the softenable layer and typically contiguous to the free surface of the softenable material. Imaging with a member comprising a softenable photoconductive binder material with marking particles therein dispersed throughout said softenable binder is also disclosed. Imaging is accomplished by providing a migration force across the migration imaging member and developing the member whereby the migration marking material migrates in depth in the softenable layer in imagewise configuration.

Inventors

  • 👤 William L. Goffe
  • 👤 Joseph Mammino

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 22:03
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 65 words
An imaging member comprising a substrate and a fracturable layer comprising migration marking material wherein said fracturable layer is contiguous the surface of and at least partially embedded in and contacting a photoconductive insulating softenable layer comprising homogeneous photoconductive softenable material, said photoconductive insulating softenable layer material substantially devoid of fracturable layer material and said fracturable layer is overcoated with another layer of softenable material.
Claim 2
Dependent Claim 65 words
An imaging member comprising a substrate and a fracturable layer comprising migration marking material wherein said fracturable layer is contiguous the surface of and at least partially embedded in and contacting a photoconductive insulating softenable layer comprising homogeneous photoconductive softenable material, said photoconductive insulating softenable layer material substantially devoid of fracturable layer material and said fracturable layer is overcoated with another layer of softenable material.

References Cited (Backward Citations)

US2798821A Cited
US2886434A Cited
US2860048A Cited
US3254997A Cited
US3238041A Cited
US3276031A Cited
US3291600A Cited
US3408181A Cited
US3450831A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-01-19 1979-07-21 1980-01-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-01-19 1983-07-21 1984-01-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-01-19 1987-07-21 1988-01-20 $7700.00 Window Closed / Lapsed

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