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:
Jun. 07, 1977
Filed:
Jun. 19, 1975
Applicant:
Inventors:
David A Luce, Clarence Center, NY (US);
Anthony Marchese, Cheektowaga, NY (US);
Assignee:
Norlin Music, Inc., Lincolnwood, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
G10H / ;
U.S. Cl.
CPC ...
84-11 ; 84-127 ; 84423 ; 84433 ; 84DI / ; 200D / ; 3403 / ; 361300 ;
Abstract
A keyboard of an electronic musical instrument incorporates a plurality of variable capacitors, one for each key, with one conductor of each capacitor being connected for movement with an individual key of the keyboard toward and away from the other conductor, so as to vary the capacitance of the capacitor in accordance with the force with which the key is depressed.
Luce, David. (1977). Keyboard for an electronic musical instrument employing variable (U.S. Patent No. 4027569). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4027569
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile