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US3474020A Expired / Lapsed US ⏱️ 0.0 years remaining

Photoelectrophoretic imaging process using quinacridones

Assignee: Xerox Corp
•
Filing: 1965-07-02
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Granted: 1969-10-21
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Expires: 1985-07-02
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Abstract

No abstract record available.

Inventors

  • 👤 Vsevolod Tulagin
  • 👤 Santokh S Labana

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 16:53
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/44; G; G01; G01T; G01T1/00; G01T1/16; G01T1/26; G03; G03G; G03G13/00; G03G13/01; G03G13/14; G03G13/22; G03G13/24; G03G15/00; G03G15/01; G03G17/00; G03G17/04; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/12; H10; H10F; H10F99/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2844484A Cited
US2844485A Cited
US3010883A Cited
US3172827A Cited
US3384566A Cited
US3384565A 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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