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US2851956A Expired / Lapsed US ⏱️ 0.0 years remaining

Pumps

Assignee: Tait Manufacturing Co
•
Filing: 1955-06-24
•
Granted: 1958-09-16
•
Expires: 1975-06-24
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Abstract

No abstract record available.

Inventors

  • 👤 Kenneth R Lung

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 07:37
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/046; F04D29/047

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1079682A Cited
US1285644A Cited
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US2039131A Cited
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US2086806A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-09-15 1962-03-17 1962-09-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-09-15 1966-03-17 1966-09-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-09-15 1970-03-17 1970-09-16 $7700.00 Window Closed / Lapsed

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