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:
Aug. 18, 2015
Filed:
Sep. 20, 2012
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Junichi Saito, Yamagata Prefecture, JP;
Toshihiro Kasai, Kanagawa, JP;
Yuji Hiroshige, Tokyo, JP;
Mayumi Yoshikawa, Kanagawa, JP;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/128 (2006.01); E01F 9/04 (2006.01);
U.S. Cl.
CPC ...
G02B 5/128 (2013.01); E01F 9/044 (2013.01);
Abstract
The present application relates to a pavement marker including a core from which extends protrusions and a cavity between adjacent protrusions. The microsphere lenses are fixed within the cavity by one of a softening material disposed in the core and an adhesive agent disposed in the cavity.