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:
May. 02, 1989
Filed:
Nov. 07, 1986
Applicant:
Inventors:
Edward J Ellis, Rowley, MA (US);
Louis Mager, Sudbury, MA (US);
Assignee:
Polymer Technology, Corp., Wilmington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08F / ;
U.S. Cl.
CPC ...
522 99 ; 264-14 ; 264 22 ; 351160 ;
Abstract
Improved contact lens materials are obtained from copolymers containing a siloxanyl alkyl ester vinyl monomer by exposing the materials to high energy radiation thereby reducing the amount of unreacted monomer and residual contaminants.
Ellis, Edward. (1989). Dimensionally stable oxygen permeable hard contact lens material and (U.S. Patent No. 4826889). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4826889
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile