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:
Oct. 26, 1993
Filed:
May. 07, 1992
Applicant:
Inventor:
Warren C Schimpf, New Castle County, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D01F / ;
U.S. Cl.
CPC ...
264 292 ; 264 296 ; 264 297 ; 264 83 ; 4234476 ; 4234477 ; 4234478 ;
Abstract
PAN-based precursors are stabilized prior to carbonization in separate non-oxidizing and oxidizing environments according to process of the invention. Advantages of process include safer, more rapid stabilization and increase in the types of polymers which may be effectively stabilized.
Schimpf, Warren. (1993). Process of thermally stabilizing pan fibers (U.S. Patent No. 5256344). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5256344
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile