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US2640144A Expired / Lapsed US ⏱️ 0.0 years remaining

Indicator illuminating device

Assignee: NCR Voyix Corp
•
Filing: 1950-02-01
•
Granted: 1953-05-26
•
Expires: 1970-02-01
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Abstract

No abstract record available.

Inventors

  • 👤 Levy Sidney

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 19:19
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/28; G06; G06C; G06C25/00; Y; Y10; Y10S; Y10S385/00; Y10S385/901

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1973728A Cited
FR816795A Cited
US2221152A Cited
US2490370A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-05-25 1956-11-24 1957-05-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-05-25 1960-11-24 1961-05-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-05-25 1964-11-24 1965-05-26 $7700.00 Window Closed / Lapsed

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