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US2426945A Expired / Lapsed US ⏱️ 0.0 years remaining

Window balancer

Assignee: Reconstruction Finance Corp
•
Filing: 1944-11-14
•
Granted: 1947-09-02
•
Expires: 1964-11-14
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Abstract

No abstract record available.

Inventors

  • 👤 Peremi Edmund
  • 👤 Weimann Henry

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:50
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/1253; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/148

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US539924A Cited
FR769817A Cited
US1248221A Cited
FR834438A Cited
US2178533A Cited
US2335816A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1950-09-01 1951-03-03 1951-09-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1954-09-01 1955-03-03 1955-09-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1958-09-01 1959-03-03 1959-09-02 $7700.00 Window Closed / Lapsed

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