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:
Oct. 22, 1996
Filed:
Apr. 03, 1995
Applicant:
Inventors:
Shashi G Talvalkar, Kettering, OH (US);
Marion E McCreight, West Carrollton, OH (US);
Assignee:
AT&T Global Information Solutions Company, Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
347217 ; 347221 ;
Abstract
Thermal transfer printing ribbon for printing security bar code symbols wherein the thermal transfer printing ribbon has been overprinted or overcoated in specific predetermined locations with a coating which has magnetic recognition characteristics. The difference in printed bar code symbols is invisible to the human eye and bar-code scanning equipment, but can be readily detected using a device capable of recognizing a magnetic signal.