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:
Apr. 07, 1992
Filed:
Sep. 03, 1991
Applicant:
Inventors:
Akira Harada, Osaka, JP;
Hiroshi Mano, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521134 ; 264127 ; 2642107 ; 264211 ; 2642112 ; 521 56 ; 521 59 ; 521 60 ; 521145 ;
Abstract
A polytetrafluoroethylene porous material and a process for producing the same are disclosed, the material comprising a mixture of polytetrafluoroethylene having a number-average molecular weight of 2,000,000 or more and polytetrafluoroethylene having a number-average molecular weight of 1,000,000 or less, the material having been stretched at least uniaxially.
Harada, Akira. (1992). Polytetrafluoroethylene porous material and process for producing the (U.S. Patent No. 5102921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5102921
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile