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US3046965A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve seat assembly

Assignee: Worthington Corp
•
Filing: 1961-07-06
•
Granted: 1962-07-31
•
Expires: 1981-07-06
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Abstract

No abstract record available.

Inventors

  • 👤 Kauffmann William Martin
  • 👤 Franklin E Carter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:20
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/22

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2517114A Cited
US2696810A Cited
US2665675A Cited
US2631577A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1965-07-30 1966-01-29 1966-07-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1969-07-30 1970-01-29 1970-07-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1973-07-30 1974-01-29 1974-07-31 $7700.00 Window Closed / Lapsed

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