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:
Apr. 07, 1998
Filed:
Aug. 16, 1996
Douglas C Arndt, Ventura, CA (US);
Identicator Corporation, San Bruno, CA (US);
Abstract
A method and apparatus for improving the optical boundary between a person's fingerprint ridges and the surface platen of a live-scan-imaging apparatus includes providing an absorbent pad containing chemicals selected from the nonvolatile oils, oil amides, fatty alcohols and fatty acid esters, placing the person's finger to be scanned on the surface of the absorbent pads to coat the fingerprint ridges and subsequently placing the person's finger with the coated fingerprint ridges on the platen of the imaging apparatus to provide a high contrast between the ridges and valleys of the fingerprint area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile