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:
Jun. 27, 2006
Filed:
Feb. 24, 2003
Richard J. Pokorny, Maplewood, MN (US);
Marc D. Radcliffe, Newport, MN (US);
Steven D. Solomonson, Shoreview, MN (US);
Terence D. Spawn, West Lakeland Township, MN (US);
Richard J. Pokorny, Maplewood, MN (US);
Marc D. Radcliffe, Newport, MN (US);
Steven D. Solomonson, Shoreview, MN (US);
Terence D. Spawn, West Lakeland Township, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The method of making an optical body includes coating a mixture that includes a plurality of cholesteric liquid crystal compositions, and a solvent on a substrate. Each cholesteric liquid crystal composition is different. A plurality of layers is formed on the substrate. Each layer includes a majority of one of the cholesteric liquid crystal compositions.