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:
Apr. 02, 1985
Filed:
May. 25, 1983
Applicant:
Inventors:
Joseph W Wittmann, Rochester, NY (US);
John M Evans, Greece, NY (US);
Assignee:
CooperVision, Inc., Scottsville, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526279 ; 3511 / ; 3511 / ; 528 32 ;
Abstract
Oxygen permeable hard contact lenses from the copolymerization of ethylenically unsaturated silicone ester; sterically hindered or bulky aliphatic ester of ethylenically unsaturated carboxylic acid, and hydrophilic monomer; and method for the polymerization thereof.