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US1785259A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve construction for slush pumps

Assignee: Individual
•
Filing: 1927-01-10
•
Granted: 1930-12-16
•
Expires: 1947-01-10
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Abstract

No abstract record available.

Inventors

  • 👤 Henry P Hickerson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 19:56
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; Y; Y10; Y10S; Y10S137/00; Y10S137/902; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7866; Y10T137/7867; Y10T137/7868

Claims Analysis

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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) 1933-12-15 1934-06-16 1934-12-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1937-12-15 1938-06-16 1938-12-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1941-12-15 1942-06-16 1942-12-16 $7700.00 Window Closed / Lapsed

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