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:
Aug. 16, 1977
Filed:
Jul. 08, 1975
Applicant:
Inventor:
Ronald G Arpino, Branford, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10G / ;
U.S. Cl.
CPC ...
84454 ;
Abstract
An instrument for tuning musical instruments where a low difference frequency is derived between the instrument to be tuned and a reference frequency. The difference frequency signal is shaped to a pulse train of constant amplitude and width pulses. The pulses are integrated with respect to time, and an indicating meter indicates when the instrument is precisely in tune or small sharp or flat deviations therefrom.
Arpino, Ronald. (1977). Instrument for tuning musical instruments (U.S. Patent No. 4041831). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4041831
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile