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:
Jan. 13, 1976
Filed:
Nov. 30, 1973
Karel Eugeen Verhille, Hoboken, BE;
AGFA-GEVAERT N.V., Mortsel, BE;
Abstract
A method of recording an electrostatic charge image or pattern representing information to be recorded, such discharge pattern being generated in the interior of an envelope or chamber comprising as a portion of its wall a dielectric target towards which the charges are projected, characterised in that a corresponding electrostatic charge image is produced externally of the envelope on the exterior surface of the dielectric target by projecting such charges against the target while the exterior surface of the target is electrostatically charged with charges of a polarity opposite to the interior charge pattern or is being exposed to such opposite charging from an external charging source. Optionally, a separate dielectric material is arranged outside the chamber in contact with the exterior target surface and the external charge pattern is produced on the separate dielectric material which can be removed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile