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US2866907A Expired / Lapsed US ⏱️ 0.0 years remaining

Dual battery switch system

Assignee: Individual
•
Filing: 1957-01-02
•
Granted: 1958-12-30
•
Expires: 1977-01-02
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Abstract

No abstract record available.

Inventors

  • 👤 Gebhard Frederick William

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 09:37
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1423; B; B60; B60R; B60R16/00; B60R16/02; B60R16/03; H02J2105/00; H02J2105/30; H02J2105/33

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1287266A Cited
US2278745A Cited
US2564957A Cited
US2629059A Cited
US2692953A Cited
US2729750A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1961-12-29 1962-06-30 1962-12-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1965-12-29 1966-06-30 1966-12-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1969-12-29 1970-06-30 1970-12-30 $7700.00 Window Closed / Lapsed

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