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US2817076A Expired / Lapsed US ⏱️ 0.0 years remaining

Monitoring system

Assignee: General Electric Co
•
Filing: 1955-07-26
•
Granted: 1957-12-17
•
Expires: 1975-07-26
📄 Original PDF 🌐 Google Patents

Abstract

No abstract record available.

Inventors

  • 👤 Donald E Graves

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 06:47
CPC Classifications
H; H05; H05G; H05G1/00; H05G1/08; H05G1/26; H05G1/54

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2009447A Cited
US2492343A Cited
US2568172A Cited
US2743431A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-12-16 1961-06-17 1961-12-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-12-16 1965-06-17 1965-12-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-12-16 1969-06-17 1969-12-17 $7700.00 Window Closed / Lapsed

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