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US2462216A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydraulic balance

Assignee: Individual
•
Filing: 1944-12-30
•
Granted: 1949-02-22
•
Expires: 1964-12-30
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Abstract

No abstract record available.

Inventors

  • 👤 Jr Leon J Nowak

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 17:47
CPC Classifications
G; G01; G01G; G01G5/00; G01G5/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

USRE17728E Cited
US1199687A Cited
CH74648A Cited
GB291895A Cited
US2212586A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1952-02-22 1952-08-23 1953-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1956-02-22 1956-08-23 1957-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1960-02-22 1960-08-23 1961-02-22 $7700.00 Window Closed / Lapsed

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