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:
Nov. 25, 1980
Filed:
Dec. 18, 1978
Applicant:
Inventors:
Robert M Thompson, Wilmington, DE (US);
David C White, Concordville, PA (US);
Assignee:
Suntech, Inc., Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
B31D / ; C02F / ; C08L / ;
U.S. Cl.
CPC ...
210654 ; 2104 / ; 2103 / ; 525432 ;
Abstract
Semipermeable membranes useful in membrane separation processes are formed from a hydrophilic polyamide which is a block copolymer of nylon and a poly(dioxa-amide) such as poly(4,7-dioxadecamethylene adipamide).
Thompson, Robert. (1980). Hydrophilic polyamide film for semipermeable membranes (U.S. Patent No. 4235714). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4235714
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile