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:
Jul. 11, 1978
Filed:
Jun. 07, 1976
Applicant:
Inventors:
Jack E Cook, Saint Paul, MN (US);
Terry R Bailey, Cottage Grove, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350105 ; 40582 ; 350102 ; 350109 ;
Abstract
A new sheet material carries specially viewable reflective legends provided by a dielectric mirror. The mirror is patterned so that the reflectivity from the mirror carries a pattern of contrasting colors. In some embodiments the mirror is incorporated into retroreflective sheet materials, and in other embodiments in specularly reflective sheet materials.