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US3715418A Expired / Lapsed US ⏱️ 0.0 years remaining

Low viscosity melt spinning process

Assignee: Monsanto Co
•
Filing: 1969-10-02
•
Granted: 1973-02-06
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Expires: 1989-10-02
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Abstract

Abstract FIBER LENGTHS ARE FORMED FROM AN INORGANIC MOLTEN MATERIAL HAVING A MELT VISCOSITY-MELT SURFACE TENSION RATIO OF NOT GREATER THAN ONE. THE FIBERS ARE OBTAINED BY EXTRUDING A FREE FALLING STREAM FROM THE MELT FILM-STABILIZING THE STREAM AGAINST THE EFFECTS OF SURFACE TENSION PENDING SOLIDIFICATION, AND DECELERATING THE SOLIDIFIED STREAM AT A SELECTED POINT INTERMEDIATE OF A FIRST POINT (D0) UPSTREAM SFIG-01 OF WHICH ATTENDING STREAM DECELERATION CAUSES ATTAINMENT OF A NON-FIBROUS MASS, AND A SECOND POINT (d0) UPSTREAN OF WHICH ATTENDING STREAM DECELERATION CAUSES DISRUPTIONS IN THE SOLIDIFIED STREAM CONTINUITY, DO BEING UPSTREAM FROM DA.

Inventors

  • 👤 W Privott
  • 👤 R Cunningham

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 19:09
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/005; C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; Y; Y10; Y10S; Y10S264/00; Y10S264/19

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) 1976-02-06 1976-08-07 1977-02-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-02-06 1980-08-07 1981-02-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-02-06 1984-08-07 1985-02-06 $7700.00 Window Closed / Lapsed

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