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US2599623A Expired / Lapsed US ⏱️ 0.0 years remaining

Closed circuit fire and burglar alarm

Assignee: Individual
•
Filing: 1950-08-30
•
Granted: 1952-06-10
•
Expires: 1970-08-30
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Abstract

No abstract record available.

Inventors

  • 👤 Herman G Forrester

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 21:50
CPC Classifications
G; G08; G08B; G08B23/00

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

DE289934C Cited
US933197A Cited
US1536192A Cited
US2064533A Cited
US2488622A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-06-10 1955-12-10 1956-06-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-06-10 1959-12-10 1960-06-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-06-10 1963-12-10 1964-06-10 $7700.00 Window Closed / Lapsed

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