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:
Jul. 29, 1980
Filed:
Dec. 14, 1977
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210490 ; 2105 / ; 264135 ; 264257 ; 428246 ; 428247 ; 428252 ; 428265 ; 428284 ; 428289 ; 428290 ; 428304 ;
Abstract
In a reverse osmosis membrane of the structure of Loeb's membrane for use to purify sea-water into plain water, the membrane comprises a skin layer as an active layer and a gel layer to support the skin layer, wherein
Kitano, Motoi. (1980). Reverse osmosis membrane (U.S. Patent No. 4214994). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4214994
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile