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US3063467A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve seats

Assignee: Mission Manufacturing Co
•
Filing: 1960-04-08
•
Granted: 1962-11-13
•
Expires: 1980-04-08
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Abstract

No abstract record available.

Inventors

  • 👤 Jr Emmett T Roberts
  • 👤 Walter E Liljestrand
  • 👤 Henry B Young

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:44
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/46; F16K1/465; F16K1/42; F16K1/425; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7868

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1781224A Cited
US2148850A Cited
US2645449A Cited
US2676781A Cited
US2771091A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-11-12 1966-05-14 1966-11-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-11-12 1970-05-14 1970-11-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-11-12 1974-05-14 1974-11-13 $7700.00 Window Closed / Lapsed

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