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. 11, 2000
Filed:
Nov. 02, 1998
Applicant:
Inventors:
Michael H Fritsch, Indianapolis, IN (US);
Thomas M Fritsch, Lincoln, NE (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
3511 / ; 3511 / ;
Abstract
To permit vision underwater, a contact lens has a center portion that includes underwater correction of vision and a peripheral portion that sufficiently conforms in curvature with the cornea of an eye to hold the contact lens to the eye. In one embodiment, the lens provides a correction adequate for both underwater and above water use and in another embodiment, underwater correction is provided when wet and above water correction is provided when dry.