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US2671176A Expired / Lapsed US ⏱️ 0.0 years remaining

Switch arrangement for electrotherapeutic treatment plants

Assignee: Individual
•
Filing: 1948-12-08
•
Granted: 1954-03-02
•
Expires: 1968-12-08
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Abstract

No abstract record available.

Inventors

  • 👤 Fred S Landauer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 11:11
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/18; A61N1/32

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US556617A Cited
US586622A Cited
US1718374A Cited
US2004751A Cited
US1980911A Cited
US2066333A Cited
US2226459A Cited
US2252613A Cited
US2295585A Cited
US2355363A Cited
US2467474A Cited
US2424972A Cited
US2456970A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-03-01 1957-08-31 1958-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-03-01 1961-08-31 1962-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-03-01 1965-08-31 1966-03-02 $7700.00 Window Closed / Lapsed

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