Electronic keyboard musical instrument

- Yamaha Corporation
Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top, front perspective view of an electronic keyboard musical instrument showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D222113 September 1971 Novaco
D305772 January 30, 1990 Kitsuyu
D313031 December 18, 1990 Yamawaki
D313033 December 18, 1990 Mizushima
Other references
  • International Design, Sep./Oct. 1985, p. 36. Purchaser's Guide to the Music Industries, 1986, p. 105. Music Trades, Sep. 1987, p. 99. Music Trades, Feb. 1986, p. 29 (Bontempi X301 and X451 Keyboards).
Patent History
Patent number: D317930
Type: Grant
Filed: Feb 16, 1989
Date of Patent: Jul 2, 1991
Assignee: Yamaha Corporation (Shizuoka)
Inventors: Ikuro Mine (Hamamatsu), Michel Granger (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/311,586
Classifications
Current U.S. Class: Keyboard Type (D17/1)