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. 10, 2003
Filed:
Mar. 14, 2001
Applicant:
Inventors:
David A. Engler, St. Paul, MN (US);
Rolf W. Biernath, St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/600 ; G09G 3/34 ;
U.S. Cl.
CPC ...
G02B 2/600 ; G09G 3/34 ;
Abstract
A microfabricated structure to interact with electromagnetic waves, such as a visual display apparatus for positioning movable particles, the structure comprising a substrate containing a plurality of pockets and/or a plurality of posts, and a plurality of optically anisotropic particles placed in the substrate. Pockets are sealable in relation to other pockets and to air, and each pocket being capable of positioning at least one particle.
Engler, David. (2003). Post and pocket microstructures containing moveable particles having optical effects (U.S. Patent No. 6577432). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6577432
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile