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. 26, 1984
Filed:
Sep. 09, 1983
Applicant:
Inventors:
Jan W Adamse, Hellevoetsluis, NL;
Jan Van Turnhout, Pijnacker, NL;
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428283 ; 428288 ; 428921 ;
Abstract
Fibrous web electrets are given added properties through inclusion of a particulate material, such as a flame-retardant agent, in less than all the layers of a plural-layer film from which fibers are fibrillated, and by use of a brominated derivative of bisphenol A as the flame-retardant agent.
Adamse, Jan. (1984). Particulate-modified electret fibers (U.S. Patent No. 4456648). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4456648
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile