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US1154035A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of perforating separated obstructions in hollow walls.

Assignee: Individual
•
Filing: 1913-01-15
•
Granted: 1915-09-21
•
Expires: 1933-01-15
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Abstract

No abstract record available.

Inventors

  • 👤 Albert R Locke

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 17:44
CPC Classifications
B; B23; B23B; B23B35/00; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/65; Y10T408/665; Y10T408/91; Y10T74/00; Y10T74/19; Y10T74/19619

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1918-09-20 1919-03-22 1919-09-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1922-09-20 1923-03-22 1923-09-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1926-09-20 1927-03-22 1927-09-21 $7700.00 Window Closed / Lapsed

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