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. 08, 1983
Filed:
Feb. 26, 1982
Applicant:
Inventors:
Taichiro Akiyama, Tokyo, JP;
Fumio Wada, Tsuruoka, JP;
Assignee:
Koken Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ;
U.S. Cl.
CPC ...
3-1 ; 3 36 ; 128 / ; 128D / ; 128D / ; 428 35 ; 428421 ; 428422 ; 428447 ; 525937 ;
Abstract
An impermeable laminated membrane, constructed by the superposition of a silicone rubber membrane on a fluoro-rubber membrane, is disclosed. This laminated membrane has an extremely low permeability so that its is effective for implantation into living organisms.