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US2926692A Expired / Lapsed US ⏱️ 0.0 years remaining

Check valve

Assignee: US Industries Inc
•
Filing: 1956-12-18
•
Granted: 1960-03-01
•
Expires: 1976-12-18
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Abstract

No abstract record available.

Inventors

  • 👤 Jack H Zillman
  • 👤 Glynn H Williams

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 01:17
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/147; F16K15/1471; F16K15/16; F16K15/162; F16K7/00; F16K7/02; F16K7/04; F16K7/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/784; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7885; Y10T137/7888; Y10T137/7891; Y10T137/7892

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US187411A Cited
US810502A Cited
US1515645A Cited
US1930040A Cited
US1969118A Cited
US2355862A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-03-01 1963-08-31 1964-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-03-01 1967-08-31 1968-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-03-01 1971-08-31 1972-03-01 $7700.00 Window Closed / Lapsed

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