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Patent US2912186A successfully refreshed from Google Patents.
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US2912186A Expired / Lapsed US ⏱️ 0.0 years remaining

Coil winding machine

Assignee: Leesona Corp
•
Filing: 1955-09-07
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Granted: 1959-11-10
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Expires: 1975-09-07
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Abstract

No abstract record available.

Inventors

  • 👤 William W Clarke
  • 👤 Clarence C Stevens
  • 👤 Bauer Hubert
  • 👤 Jr Harold Jarvis
  • 👤 Heller Philip

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 18:55
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/10; B65H54/20; B21; B21C; B21C47/00; B21C47/006; H; H01; H01F; H01F41/00; H01F41/02; H01F41/04; H01F41/06; H01F41/064; H01F41/066; H01F41/068

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

CH80681A Cited
US2531962A Cited
US2474755A Cited
DE913142C Cited
US2764363A Cited
US2699297A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1962-11-09 1963-05-11 1963-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1966-11-09 1967-05-11 1967-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1970-11-09 1971-05-11 1971-11-10 $7700.00 Window Closed / Lapsed

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