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US2539043A Expired / Lapsed US ⏱️ 0.0 years remaining

Number comparing device

Assignee: CIE IND DES MACHINES AUTOMATIQ
•
Filing: 1946-05-02
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Granted: 1951-01-23
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Expires: 1966-05-02
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Abstract

No abstract record available.

Inventors

  • 👤 Verneaux Jean Eugene Paul

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:17
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/02; G06F7/026

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1927702A Cited
US2074392A Cited
US2359630A Cited
US2364540A Cited
US2393386A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-01-22 1954-07-24 1955-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-01-22 1958-07-24 1959-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-01-22 1962-07-24 1963-01-23 $7700.00 Window Closed / Lapsed

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