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:
Jun. 29, 1993
Filed:
May. 13, 1992
Applicant:
Inventors:
Birol Kirayoglu, Wilmington, DE (US);
William J Sullivan, Richmond, VA (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H / ;
U.S. Cl.
CPC ...
162145 ; 162146 ; 1621573 ; 162206 ; 162207 ;
Abstract
Papers with improved tensile strength and increased porosity are obtained by heat treatment of calendered sheets of poly(p-phenylene terephthalamide) short fibers and poly(m-phenylene isophthalamide) fibrids.
Quick Actions:
Kirayoglu, Birol. (1993). Process for preparing strong aromatic polyamide papers of high porosity (U.S. Patent No. 5223094). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5223094
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile