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. 30, 1987
Filed:
Nov. 09, 1984
Brian J Roberts, San Diego, CA (US);
James T Walters, Oceanside, CA (US);
International Totalizator Systems, Inc., San Diego, CA (US);
Abstract
Secure placement of confidential information on tickets distributed in blank is permitted by opaquely overlaying an area of the ticket upon which the information is to be placed in visible form and employing a printing apparatus that prints the visible information on the ticket area through the opaque overlay without leaving any easily-discernible trace in the overlay that reveals the imprinted information. A ticket can be given in blank to a ticket holder. Then, when the ticket holder makes an exchange in order to receive the information, the information can be placed on the ticket, with the opaque overlay concealing the information until selectively removed by the ticket holder.