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US2879093A Expired / Lapsed US ⏱️ 0.0 years remaining

Self contained seals

Assignee: Chicago Rawhide Manufacturing Co Inc
•
Filing: 1955-01-04
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Granted: 1959-03-24
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Expires: 1975-01-04
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Abstract

No abstract record available.

Inventors

  • 👤 Leonard M Dolhun

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 09:18
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)

US2321871A Cited
US2347118A Cited
US2500898A Cited
US2489781A Cited
US2615739A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-03-23 1962-09-22 1963-03-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-03-23 1966-09-22 1967-03-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-03-23 1970-09-22 1971-03-24 $7700.00 Window Closed / Lapsed

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