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:
Dec. 01, 1981
Filed:
Dec. 31, 1979
Applicant:
Inventors:
Daniel L Torgersen, Sauk Rapids, MN (US);
Leon H Fischer, Cold Spring, MN (US);
Assignee:
Buckbee-Mears Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C09K / ;
U.S. Cl.
CPC ...
427145 ; 8507 ; 8509 ; 8512 ; 427-7 ; 427157 ; 427164 ;
Abstract
A method of marking plastic lenses to selectively identify a lens by impregnating a fluorescent material into the surface of the lens so that when the lens is exposed to ultraviolet light it fluoresces.