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US2306346A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve mechanism

Assignee: GEN AUTO PARTS CORP
•
Filing: 1938-11-19
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Granted: 1942-12-22
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Expires: 1958-11-19
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Abstract

No abstract record available.

Inventors

  • 👤 Edward A Rockwell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 15:49
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/12; B60T13/16; F; F15; F15B; F15B17/00; F16; F16K; F16K31/00; F16K31/12; F16K31/122; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582; Y10T137/8667; Y10T137/87169; Y10T137/87217; Y10T137/87225

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1945-12-21 1946-06-22 1946-12-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1949-12-21 1950-06-22 1950-12-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1953-12-21 1954-06-22 1954-12-22 $7700.00 Window Closed / Lapsed

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