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. 24, 1984
Filed:
Aug. 24, 1982
Steven A Lipp, Hopewell, NJ (US);
Michael P Adams, Mercerville, NJ (US);
RCA Corporation, New York, NY (US);
Abstract
The novel method comprises (1) producing in one major surface of a metal masking plate an array of substantially-parallel grooves separated by ridges of plate metal, (2) producing in the other of said major surfaces an array of generally rectangular-shaped depressions opposite the grooves and extending only partially through the plate and less than the distances required to connect to said grooves, (3) filling the grooves with an electrically-insulating material, (4) removing the ridges of metal down to depths to connect with the depressions, thereby producing an array of substantially-rectangular apertures through the plate and electrically-insulating strips across the apertures and (5) covering selected surface portions of the electrically-insulating material with an electrically-conducting material. Before step (3), the surface of the grooves are coated with a resistive or semiconductive material, such as black iron oxide.