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:
Feb. 21, 1989
Filed:
May. 02, 1988
Applicant:
Inventor:
Bernard J Wojciak, Jr, Woodridge, IL (US);
Assignee:
Chamberlain Manufacturing Corporation, Elmhurst, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ; H04B / ;
U.S. Cl.
CPC ...
34082569 ; 3311 / ; 455129 ;
Abstract
A radio control transmitter which suppressed harmonics includes an oscillator which is coded by code selecting switches and in which undesired harmonics are reduced from the output of the transmitter by adding inductors into the emitter, the collector or the base of the radio frequency oscillator.