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:
Apr. 11, 2017
Filed:
Feb. 15, 2011
Applicant:
Jan L. Folkesson, Varnamo, SE;
Inventor:
Jan L. Folkesson, Varnamo, SE;
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A42B 3/06 (2006.01); G01J 1/50 (2006.01); G01N 17/00 (2006.01); G01N 17/04 (2006.01); G01N 33/44 (2006.01);
U.S. Cl.
CPC ...
A42B 3/067 (2013.01); G01J 1/50 (2013.01); G01N 17/004 (2013.01); G01N 17/043 (2013.01); G01N 33/44 (2013.01);
Abstract
An indicator device comprising a first carrier material; a first pigment disposed in the first carrier material, the first pigment capable of being degraded by exposure to UV radiation; and wherein the first carrier material is configured so as to have a varying thickness such that upon exposure to UV radiation, a visible change in the pigment will occur which will result in a varying visible change over a first surface of the first carrier material.