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:
Feb. 09, 2010
Filed:
Aug. 03, 2005
Richard J. Kuo, St. Paul, MN (US);
Mathias Detjen, Woodbury, MN (US);
Brian W. Dunne, Cambridge Park, AU;
Paul E. Marecki, Amery, WI (US);
Tadesse G. Nigatu, Cottage Grove, MN (US);
Kenneth M. White, Oakdale, MN (US);
Richard J. Kuo, St. Paul, MN (US);
Mathias Detjen, Woodbury, MN (US);
Brian W. Dunne, Cambridge Park, AU;
Paul E. Marecki, Amery, WI (US);
Tadesse G. Nigatu, Cottage Grove, MN (US);
Kenneth M. White, Oakdale, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A tamper-indicating printable sheet. A preferred embodiment of the invention provides a tamper-indicating printable sheet comprising a retroreflective layer comprising a plurality of microbeads partially embedded in an inkjet receptive beadbond layer; and a reflector layer between one of the microbeads and the inkjet receptive beadbond layer. The present invention provides a method of making a tamper-indicating printable sheet.