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US2073481A Expired / Lapsed US ⏱️ 0.0 years remaining

Sphere valve

Assignee: UNIVERSAL HYDRAULIC Corp
•
Filing: 1934-05-28
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Granted: 1937-03-09
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Expires: 1954-05-28
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Abstract

No abstract record available.

Inventors

  • 👤 Phillip A Kinzie

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 21:30
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/20; F16K5/205; Y; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579

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) 1940-03-08 1940-09-07 1941-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1944-03-08 1944-09-07 1945-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1948-03-08 1948-09-07 1949-03-09 $7700.00 Window Closed / Lapsed

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