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US2775997A Expired / Lapsed US ⏱️ 0.0 years remaining

Torsion spring seat-spring stiffener

Assignee: Motors Liquidation Co
•
Filing: 1953-01-12
•
Granted: 1957-01-01
•
Expires: 1973-01-12
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Abstract

No abstract record available.

Inventors

  • 👤 Joseph E Kubacka

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:02
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US815436A Cited
US1369441A Cited
US2029076A Cited
US2145408A Cited
US2260190A Cited
US2551800A Cited
US2643705A Cited
US2526183A Cited
US2629430A Cited
US2669292A Cited
US2684844A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-01-01 1960-07-02 1961-01-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-01-01 1964-07-02 1965-01-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-01-01 1968-07-02 1969-01-01 $7700.00 Window Closed / Lapsed

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