Photochromic eyeglass frames and their method of making

Details Photochromic eyeglass frames and their method of making Photochromic eyeglass frames and their method of making

2007-03-27

2007-03-27

Mai, Huy (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With decoration or ornamentation

C351S052000, C351S111000, C351S124000

Reexamination Certificate

active

11122752

ABSTRACT:
An transparent or semitransparent plastic eyeglass frame contains a photochromic moiety and has photochromic properties.

REFERENCES:
patent: 6224208 (2001-05-01), Pawlowski
patent: 2576117 (1986-07-01), None
patent: 63-193128 (1988-08-01), None

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