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:
Mar. 27, 1984
Filed:
Aug. 12, 1981
Applicant:
Inventor:
Anil R Dholakia, East Windsor, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369126 ; 369151 ; 369173 ;
Abstract
A playback stylus for a capacitive information disc comprising a shank, a dielectric material at one end of the shank, a first conical region of a first angle in an end portion of the dielectric material, a second conical region adjacent to the first conical region of a second angle less than the first angle, and an information recovering terminal region in the first conical region for recovering information recorded in an information track of a capacitive information disc.