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:
Mar. 09, 1982
Filed:
May. 03, 1979
Applicant:
Inventors:
Xavier Marze, Lyons, FR;
Michel Minfray, Oullins, FR;
Assignee:
Rhone-Poulenc Industries, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ;
U.S. Cl.
CPC ...
525523 ; 2105002 ; 525535 ; 525930 ;
Abstract
Semi-permeable, e.g., ultrafiltration membranes are shaped from a solvent solution of an admixture of at least one polyether comprising recurring units of the structural formula:
Marze, Xavier. (1982). Polyether admixture and semi-permeable membranes comprised thereof (U.S. Patent No. 4319008). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4319008
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile