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. 03, 1984
Filed:
Nov. 12, 1981
Applicant:
Inventors:
Richard C Chromecek, Macedon, NY (US);
Gary D Friends, Ontario, NY (US);
Lawrence Y Wissman, Rochester, NY (US);
Raymond A Yourd, III, Rochester, NY (US);
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; G03B / ;
U.S. Cl.
CPC ...
526263 ; 3511 / ; 3511 / ; 523108 ; 526259 ; 526260 ; 526262 ; 526264 ; 528499 ; 528500 ;
Abstract
Low N-vinyl lactam content copolymers are cross-linked with resonance free di(alkene tertiary amine) cyclic compounds to obtain biomedical devices, including soft contact lenses, which have good oxygen permeability and mechanical properties.