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US1782916A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric switch

Assignee: Cutler Hammer Inc
•
Filing: 1929-01-21
•
Granted: 1930-11-25
•
Expires: 1949-01-21
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Abstract

No abstract record available.

Inventors

  • 👤 Harry E Campbell
  • 👤 Earl F Mekelburg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 12:15
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0737; H; H02; H02P; H02P1/00; H02P1/02; H02P1/04; H02P1/06

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1933-11-24 1934-05-26 1934-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1937-11-24 1938-05-26 1938-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1941-11-24 1942-05-26 1942-11-25 $7700.00 Window Closed / Lapsed

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