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:
Jan. 26, 1993
Filed:
Jul. 01, 1991
Applicant:
Inventors:
Robert D Maurer, Anchorage, AK (US);
Timothy B McLaughlin, Anchorage, AK (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G02C / ; A61C / ;
U.S. Cl.
CPC ...
351165 ; 433226 ;
Abstract
Lenses coated with a UV light absorbing coating and a blue light absorbing coating protect the eyes of a dental practitioner from harmful radiation emitted by a light source used during dental curing procedures. The lenses include a clear portion which allows the wearer to view the treated area without a loss of contrast encountered when the treated area is viewed through the portion of the lenses provided with the blue light absorbing coating.