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US2293867A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve mechanism

Assignee: AW Cash Co
•
Filing: 1939-06-29
•
Granted: 1942-08-25
•
Expires: 1959-06-29
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Abstract

No abstract record available.

Inventors

  • 👤 Paul C Temple

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:13
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0166; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3077; Y10T137/308; Y10T137/7287; Y10T137/7297; Y10T137/7358; Y10T137/7368; Y10T137/7371; Y10T137/7378

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) 1945-08-24 1946-02-23 1946-08-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1949-08-24 1950-02-23 1950-08-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1953-08-24 1954-02-23 1954-08-25 $7700.00 Window Closed / Lapsed

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