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US3402541A Expired / Lapsed US ⏱️ 0.0 years remaining

Flail knife assembly

Assignee: Case LLC
•
Filing: 1965-07-21
•
Granted: 1968-09-24
•
Expires: 1985-07-21
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Abstract

No abstract record available.

Inventors

  • 👤 Bruno J Panek
  • 👤 Robert W Woodring

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 05:38
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/52; A01D34/535

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US2974888A Cited
US3043080A Cited
US3122871A Cited
US3177640A Cited
US3252276A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1971-09-24 1972-03-25 1972-09-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1975-09-24 1976-03-25 1976-09-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1979-09-24 1980-03-25 1980-09-24 $7700.00 Window Closed / Lapsed

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