The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1992
Filed:
Oct. 12, 1989
Applicant:
Inventor:
Donald A Shiffler, Kinston, NC (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ; D01F / ;
U.S. Cl.
CPC ...
264103 ; 264129 ; 264130 ; 264134 ; 264136 ; 264145 ; 2642103 ; 2642108 ; 264233 ; 2642356 ; 26421115 ; 264346 ;
Abstract
Water-dispersible polyester fiber whose water-dispersibility is improved, and precursor filament tow are prepared by an improved process involving treatment of undrawn polyester filaments with a very small amount of caustic, when freshly-extruded, in a spin-finish.
Quick Actions:
Shiffler, Donald. (1992). Improvements in process for preparing water-dispersible polyester fiber (U.S. Patent No. 5145622). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5145622
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile