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US2308569A Expired / Lapsed US ⏱️ 0.0 years remaining

Tool and method for making the same

Assignee: Individual
•
Filing: 1941-07-21
•
Granted: 1943-01-19
•
Expires: 1961-07-21
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Abstract

No abstract record available.

Inventors

  • 👤 Clair Leo J St

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 18:16
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K31/025; B23B; B23B27/00; B23B27/06; B23B27/14; B23B27/18; Y; Y10; Y10T; Y10T407/00; Y10T407/13; Y10T407/19; Y10T407/1904; Y10T407/26

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) 1946-01-18 1946-07-20 1947-01-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1950-01-18 1950-07-20 1951-01-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1954-01-18 1954-07-20 1955-01-19 $7700.00 Window Closed / Lapsed

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