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US2671894A Expired / Lapsed US ⏱️ 0.0 years remaining

Control and monitoring device

Assignee: Consolidated Vultee Aircraft Corp
•
Filing: 1951-08-06
•
Granted: 1954-03-09
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Expires: 1971-08-06
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Abstract

No abstract record available.

Inventors

  • 👤 Clarvel R Curnutt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 03:31
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/16; H01H9/167

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US671278A Cited
US831404A Cited
US1209407A Cited
US2037565A Cited
US2127893A Cited
US2248351A Cited
GB582038A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1957-03-08 1957-09-07 1958-03-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1961-03-08 1961-09-07 1962-03-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1965-03-08 1965-09-07 1966-03-09 $7700.00 Window Closed / Lapsed

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