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US1138338A Expired / Lapsed US ⏱️ 0.0 years remaining

Relief-valve.

Assignee: Individual
•
Filing: 1914-05-04
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Granted: 1915-05-04
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Expires: 1934-05-04
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Abstract

No abstract record available.

Inventors

  • 👤 Rolvin S Whitney

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 23:33
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K47/00; F16K47/01; F16K47/011; F16K47/0111; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/785; Y10T137/7852; Y10T137/7904; Y10T137/7922; Y10T137/7929

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1918-05-03 1918-11-02 1919-05-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1922-05-03 1922-11-02 1923-05-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1926-05-03 1926-11-02 1927-05-04 $7700.00 Window Closed / Lapsed

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