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:
Oct. 18, 2022
Filed:
Apr. 18, 2018
Essilor Italia Societa Per Azioni, Milan, IT;
Matteo Lagasi, Parma, IT;
ESSILOR ITALIA SOCIETA PER AZIONI, Milan, IT;
Abstract
The invention relates to an ophthalmic article () in particular for sunglasses, comprising: first layer () made of photochromic cellulose triacetate having a rear face () to be oriented toward an eye () of a user and a front face () to be oriented toward the field of vision () of the user, and a second layer () made of polyamide having a rear face () to be oriented toward an eye () of a user and a front face () to be oriented toward the field of vision () of the user, the first layer () being disposed proximate to the field of vision () of the user with regard to the second layer () being disposed proximate to the eye () of the user.