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US2565482A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for controlling engine intake pressure with variable-speed blower and engine throttle

Assignee: Motors Liquidation Co
•
Filing: 1944-09-07
•
Granted: 1951-08-28
•
Expires: 1964-09-07
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Abstract

No abstract record available.

Inventors

  • 👤 Dolza John
  • 👤 Arthur W Gaubatz
  • 👤 Peter W Perish
  • 👤 Donald P Croisant
  • 👤 Frank W Kerfoot

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:56
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0246

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1816787A Cited
US2217364A Cited
US2187737A Cited
US2228239A Cited
US2305810A Cited
US2297235A Cited
US2285344A Cited
US2283175A Cited
US2359615A Cited
US2355759A Cited
US2376199A Cited
US2376143A Cited
US2428531A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-08-27 1955-02-26 1955-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-08-27 1959-02-26 1959-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-08-27 1963-02-26 1963-08-28 $7700.00 Window Closed / Lapsed

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