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. 18, 1977
Filed:
Sep. 15, 1970
Ulf Rothgordt, Hamburg, DT;
U.S. Philips Corporation, New York, NY (US);
Abstract
An electrostatic recording device in which an area on a record carrier is charged electrically. Electrodes are arranged on both sides of the carrier. The print electrodes arranged in groups on one side thereof serve to form the desirable charge image. The counter electrodes on the other side, serve to select the desirable print electrode group. The counter electrodes being arranged in spaced opposing relationship with portions of two groups of print electrodes. The print electrodes are arranged in even and odd groupings, with each alternating group set being electrically connected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile