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. 10, 1987
Filed:
Dec. 09, 1985
Applicant:
Inventors:
Toshiharu Yoshikawa, Nagoya, JP;
Takanori Shibata, Nagoya, JP;
Assignee:
Toyo Contact Lens Co., Ltd., Nagoya, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526279 ; 528 32 ; 3511 / ;
Abstract
An oxygen permeable soft contact lens material having an improved oxygen permeability, improved softness and transparency prepared by copolymerizing a mixture comprising
Yoshikawa, Toshiharu. (1987). Oxygen permeable soft contact lens material (U.S. Patent No. 4649184). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4649184
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile