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US2435360A Expired / Lapsed US ⏱️ 0.0 years remaining

Variable pitch propeller

Assignee: VIRGINIA A LEINER
•
Filing: 1944-12-30
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Granted: 1948-02-03
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Expires: 1964-12-30
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Abstract

No abstract record available.

Inventors

  • 👤 Henry G Leiner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 18:26
CPC Classifications
B; B64; B64C; B64C11/00; B64C11/30; B64C11/32; B64C11/34

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1482690A Cited
US1833403A Cited
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US1903628A Cited
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FR733739A Cited
US2160553A Cited
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GB488477A Cited
US2307102A Cited
US2294867A Cited
US2294868A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1951-02-02 1951-08-04 1952-02-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1955-02-02 1955-08-04 1956-02-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1959-02-02 1959-08-04 1960-02-03 $7700.00 Window Closed / Lapsed

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