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. 15, 1999
Filed:
Mar. 09, 1998
Applicant:
Inventors:
Dominique Baude, Saint Quen, FR;
Florence Bouchard, Chateau-Ville-Vieille, FR;
Nicolas Chateau, Paris, FR;
Didier Bernardet, Bussy Saint Georges, FR;
Assignee:
Essilor International Compagnie Generale d'Optique, Charenton Le Pont, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
3511 / ; 351161 ; 351177 ;
Abstract
A contact lens has at least one palpebral boss projecting locally from its external surface in its peripheral area. The palpebral boss is globally elongate in a circumferential direction and the slope P of its crest line at both circumferential ends is in the range 0.020 to 0.140 and preferably in the range 0.040 to 0.080. Applications include contact lenses for centered optical correction and contact lenses for presbyopia.