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:
Dec. 27, 1983
Filed:
Apr. 26, 1982
Applicant:
Inventor:
Charlie J Kaiser, Trenton, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461351 ; 346 / ; 428 65 ; 428409 ; 428413 ; 428446 ; 430945 ; 369286 ;
Abstract
A major surface of a disc-shaped plastic base is coated with two or more nonconformal coating layers with a solvent barrier layer interposed between said coating layers. The nonconformal coating layers fill in surface imperfections of the base while the solvent barrier layers allow an efficient stacking of said coating layers to yield a surface suitable for optical recording.