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US3474736A Expired / Lapsed US ⏱️ 0.0 years remaining

Pressure loaded gear pump

Assignee: Husco International Inc
•
Filing: 1967-12-27
•
Granted: 1969-10-28
•
Expires: 1987-12-27
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Abstract

No abstract record available.

Inventors

  • 👤 John A Lauck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 22:36
CPC Classifications
F; F04; F04C; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2820416A Cited
US2870720A Cited
US2980028A Cited
US3251309A Cited
US3263620A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1972-10-27 1973-04-28 1973-10-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1976-10-27 1977-04-28 1977-10-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1980-10-27 1981-04-28 1981-10-28 $7700.00 Window Closed / Lapsed

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