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US2566629A Expired / Lapsed US ⏱️ 0.0 years remaining

Expansible mandrel

Assignee: Individual
•
Filing: 1946-07-19
•
Granted: 1951-09-04
•
Expires: 1966-07-19
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Abstract

No abstract record available.

Inventors

  • 👤 Homer D Paxson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 09:28
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/28; B21C47/30; Y; Y10; Y10T; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US771902A Cited
US1907896A Cited
US2202563A Cited
US2292916A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1954-09-03 1955-03-05 1955-09-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1958-09-03 1959-03-05 1959-09-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1962-09-03 1963-03-05 1963-09-04 $7700.00 Window Closed / Lapsed

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