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. 05, 2023
Filed:
Sep. 09, 2020
3m Innovative Properties Company, St. Paul, MN (US);
Vivek Krishnan, St. Paul, MN (US);
John C. Clark, Maplewood, MN (US);
Thomas B. Galush, Roseville, MN (US);
Jean A. Tangeman, Minneapolis, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
There is provided an article comprising at least a first surface having: (a) a first binder layer; (b) a plurality of transparent microspheres partially embedded in the first binder layer wherein the transparent microspheres have refractive indices that are less than a refractive index of the first binder layer and wherein the plurality of transparent microspheres consist of microspheres having a refractive index of no more than 1.490. There is also provided a transfer article comprising: (a) a transfer carrier, the transfer carrier comprising: (i) a support layer; and (ii) a thermoplastic release layer bonded to the support layer; (b) a layer of a plurality of transparent microspheres, formed on a side of the thermoplastic transparent microsphere release layer opposite the support layer, wherein the plurality of transparent microspheres consist of microspheres having a refractive index of no more than 1.490.