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US3831481A Expired / Lapsed US ⏱️ 0.0 years remaining

Cutter reels for fiber cutting apparatus

Assignee: Lummus Industries Inc Co
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Filing: 1971-06-14
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Granted: 1974-08-27
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Expires: 1991-06-14
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Abstract

Abstract A CUTTER REEL FOR TOW CUTTING APPARATUS ESPECIALLY FOR USE IN APPARATUS AS SHOWN, DESCRIBED AND CLAIMED IN U.S. PAT. NO. 3,485,120. THE CONSTRUCTION PROVIDES REELS WHICH COMPARED TO PRIOR ART REELS ARE MORE SELF CLEANING, IN WHICH THE BLADES MAY BE MORE SAFELY INSTALLED AND REMOVED, IN WHICH SHORTER AND NARROWER BLADES MAY BE USED WITHOUT DECREASING THE EFFECTIVE CUTTING LENGTHS THEREOF OR THE STRENGTH OF THE SAME, AND IN WHICH IT IS IMPOSSIBLE TO INSTALL THE BLADES BACKWARDS. FURTHER, THE NEW REEL CAUSES THE BLADES TO BE POSITIONED CORRECTLY, IN POSITIVE MANNER, WHEN THE REEL PARTS ARE ASSEMBLED AND THE CONSTRUCTION DECREASES THE DAMAGE TO THE REEL PARTS AND THE BLADES BY GREATLY DECREASING THE CHANCE OF THE CUTTING EDGES OF THE BLADES CONTACTING THE REEL PARTS WHEN CHANGING BLADES. D R A W I N G

Inventors

  • 👤 R Williams
  • 👤 Doorn D Van
  • 👤 J Hawkins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 15:30
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; Y; Y10; Y10S; Y10S83/00; Y10S83/913; Y10S83/954; Y10T; Y10T83/00; Y10T83/929; Y10T83/9372; Y10T83/9396; Y10T83/9399; Y10T83/9457; Y10T83/9464

Claims Analysis

Total Claims: 0
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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) 1977-08-26 1978-02-25 1978-08-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-08-26 1982-02-25 1982-08-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-08-26 1986-02-25 1986-08-27 $7700.00 Window Closed / Lapsed

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