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US2824545A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for developing xerographic images

Assignee: Xerox Corp
•
Filing: 1955-02-01
•
Granted: 1958-02-25
•
Expires: 1975-02-01
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Abstract

No abstract record available.

Inventors

  • 👤 Eugene C Ricker

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:33
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0803

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2139628A Cited
US2358138A Cited
US2423768A Cited
US2386156A Cited
US2690394A Cited
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US2513434A Cited
GB666164A Cited
US2691345A Cited
US2563362A Cited
US2725304A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-02-24 1961-08-26 1962-02-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-02-24 1965-08-26 1966-02-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-02-24 1969-08-26 1970-02-25 $7700.00 Window Closed / Lapsed

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