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US3658979A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for forming fibers and filaments directly from melts of low viscosities

Assignee: Monsanto Co
•
Filing: 1969-06-02
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Granted: 1972-04-25
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Expires: 1989-06-02
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Abstract

Abstract FILAMENTS AND FIBERS OF METALS, CERAMICS AND OTHER METERIALS WHICH ARE ESSENTIALLY INVISCED IN THE MOLTEN STATE CAN BE MADE BY EXTRUDING OR SPINNING THE MOLTEN MATERIAL AS A FREE STREAM INTO AN ATMOSPHERE WHICH FORMS A STABILIZING FILM ON THE STREAM PENDING SOLIDIFICATION AND PRIOR TO BREAKUP CAUSED BY SURFACE TENSION.

Inventors

  • 👤 Stanley A Dunn
  • 👤 Lawrence F Rakestraw
  • 👤 Robert Ernest Cunningham

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 19:08
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; B; B21; B21C; B21C23/00; B21C23/002; B22; B22D; B22D11/00; B22D11/005; B22D23/00; B22D23/06; B22D23/10; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02

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) 1975-04-25 1975-10-25 1976-04-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-04-25 1979-10-25 1980-04-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-04-25 1983-10-25 1984-04-25 $7700.00 Window Closed / Lapsed

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