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:
Jun. 21, 1988
Filed:
Nov. 19, 1985
Applicant:
Inventor:
J Warren Blaker, Bronx, NY (US);
Assignee:
University Optical Products Co., , FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
351161 ; 351177 ;
Abstract
A concentric bifocal contact lens is disclosed. The lens has a first distance power correction region of circular periphery in the central portion thereof, surrounded in succession by a concentric near power correction annular region and a concentric second distance power correction annular region. Under bright conditions, when the pupil of the eye is small, the central distance power region is helpful in achieving good distance vision.