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. 26, 1984
Filed:
Apr. 26, 1982
Robert H Best, Greensboro, NC (US);
Burlington Industries, Inc., Greensboro, NC (US);
Abstract
A device and method for deterring unauthorized use of xerographic copying machines of the type having a transparent platen on which a document having a primary image to be copied is registrable and which reproduces the primary image thereby creating a copy of the document, the device comprising a transparent substrate rigidly associated with the platen and bearing a secondary image thereon so that the primary and secondary images are concurrently reproducible on the document copy without affecting the visual perception of the primary image. The method comprises providing the platen with a secondary image, registering the document on the platen, and operating the copying machine so as to simultaneously reproduce the primary and secondary images.