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. 14, 1976
Filed:
Jul. 08, 1975
Applicant:
Inventor:
Juan M del Castillo, Mexico City, 20, M;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10B / ;
U.S. Cl.
CPC ...
84484 ;
Abstract
Optical metronomes with a spot or column of light shining through the sheet of music simultaneously in all staves or alternatively in all measures utilizing individual lamps, fiber optics, or lamps located in reflecting channels. Lights illuminate successively and are controlled by motor-driven perforated shields, contact arms, or an oscillator and gating circuitry.
del Castillo, Juan. (1976). Optical metronome (U.S. Patent No. 3996833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3996833
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile