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US2765186A Expired / Lapsed US ⏱️ 0.0 years remaining

Oil seal

Assignee: Chicago Rawhide Manufacturing Co Inc
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Filing: 1953-06-03
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Granted: 1956-10-02
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Expires: 1973-06-03
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Abstract

No abstract record available.

Inventors

  • 👤 Robert D Wright

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 12:45
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2294105A Cited
US2243255A Cited
US2426174A Cited
US2489781A Cited
US2555675A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1959-10-02 1960-04-02 1960-10-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1963-10-02 1964-04-02 1964-10-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1967-10-02 1968-04-02 1968-10-02 $7700.00 Window Closed / Lapsed

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