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US3474019A Expired / Lapsed US ⏱️ 0.0 years remaining

Photoelectrophoretic imaging method including contacting the imaging suspension with a large surface of a flexible electrode

Assignee: Xerox Corp
•
Filing: 1965-05-03
•
Granted: 1969-10-21
•
Expires: 1985-05-03
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Abstract

No abstract record available.

Inventors

  • 👤 Arthur L Krieger
  • 👤 Ira S Stein
  • 👤 Vesvolod Tulagin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 00:27
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; C07D213/44; C07D213/46; C07D213/50; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D311/00; C07D311/02; C07D311/04; C07D311/22; C07D311/26; C07D311/34; C07D311/38; C07D311/58; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/20; C07D335/00; C07D335/04; C07D335/06; G; G03; G03G; G03G17/00; G03G17/04; G03G5/00; G03G5/12

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2758939A Cited
US2987660A Cited
US2902974A Cited
US2940847A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-10-20 1973-04-21 1973-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-10-20 1977-04-21 1977-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-10-20 1981-04-21 1981-10-21 $7700.00 Window Closed / Lapsed

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