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US2596955A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for measuring direct voltages

Assignee: Schneider Electric Systems USA Inc
•
Filing: 1946-12-06
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Granted: 1952-05-13
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Expires: 1966-12-06
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Abstract

No abstract record available.

Inventors

  • 👤 Wilfred H Howe

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 19:28
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/02; G01K1/024

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1377274A Cited
US2105598A Cited
US2109222A Cited
US2154375A Cited
US2322498A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-05-13 1955-11-12 1956-05-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-05-13 1959-11-12 1960-05-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-05-13 1963-11-12 1964-05-13 $7700.00 Window Closed / Lapsed

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