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. 01, 1987
Filed:
Sep. 26, 1983
Applicant:
Inventors:
Kozo Kobayashi, Kodaira, JP;
Hideo Goto, Mitaka, JP;
Assignee:
Nakamichi Corporation, Kodaira, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
369-6 ; 455344 ;
Abstract
This invention relates to an operation prohibition device for an audio instrument such as a tape recorder. The operation prohibition device prohibits the audio instrument from being operated by operating switches when predetermined prohibition conditions are met and releases the prohibition state of the audio instrument in response to input of a correct predetermined coded number.