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. 27, 2000
Filed:
Jun. 12, 1998
Applicant:
Inventor:
Robert Cunningham, Atlanta, GA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
84266 ;
Abstract
A sharping device for shortening the length of a vibrating string on a lever harp is described. The device consists of an adjustable, freestanding fret in combination with a plastic, rotating blade sharping lever, which the harp player activates by the push of one finger. When rotated, the lever causes a vibrating string to be stopped against the fret. Both lever and fret are located along the neck of a harp so as to raise the frequency of a vibrating string by one semitone.