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US2652171A Expired / Lapsed US ⏱️ 0.0 years remaining

Cover securing means for wall boxes

Assignee: S H COUCH CO Inc
•
Filing: 1950-08-30
•
Granted: 1953-09-15
•
Expires: 1970-08-30
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Abstract

No abstract record available.

Inventors

  • 👤 Carl A P Johnson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 03:03
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/006

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US1443681A Cited
US1860833A Cited
US2214968A Cited
US2231909A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-09-14 1957-03-16 1957-09-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-09-14 1961-03-16 1961-09-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-09-14 1965-03-16 1965-09-15 $7700.00 Window Closed / Lapsed

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