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US2803112A Expired / Lapsed US ⏱️ 0.0 years remaining

Control means for constant speed hydraulic pump and motor transmission

Assignee: Sundstrand Machine Tool Co
•
Filing: 1951-12-04
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Granted: 1957-08-20
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Expires: 1971-12-04
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Abstract

No abstract record available.

Inventors

  • 👤 Jr Carl L Sadler
  • 👤 Robert H Eisengrein
  • 👤 George H Hermanson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 20:42
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7809

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2291011A Cited
US743484A Cited
US1240325A Cited
US2161439A Cited
US2360025A Cited
US2518129A Cited
US2566694A Cited
US2455070A Cited
US2485126A Cited
US2597177A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-08-19 1961-02-18 1961-08-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-08-19 1965-02-18 1965-08-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-08-19 1969-02-18 1969-08-20 $7700.00 Window Closed / Lapsed

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