Keyboard

- Marquardt GmbH
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Description

FIG. 1 is a perspective view of a keyboard showing the new design, depicting the front, top and one side thereof;

FIG. 2 is a top plan view of the keyboard;

FIG. 3 is an elevation view, showing the front of the keyboard;

FIG. 4 is an elevation view, showing the rear of the keyboard;

FIG. 5 is an elevation view, showing one side of the keyboard;

FIG. 6 is an elevation view, showing the other side of the keyboard; and,

FIG. 7 is a bottom plan view of the keyboard.

Referenced Cited
U.S. Patent Documents
D323817 February 11, 1992 Buchin
D339800 September 28, 1993 Louis
D340043 October 5, 1993 Louis
5073050 December 17, 1991 Andrews
5119078 June 2, 1992 Grant
5160919 November 3, 1992 Mohler et al.
Foreign Patent Documents
0055220 June 1982 EPX
577708 June 1933 DEX
1255117 November 1967 DEX
2218065 October 1973 DEX
020620 September 1991 WOX
Other references
  • "Die ergonomische Tastatur. Konsequent in Richtung Zukunft gedacht"; (Marquardt); [Ergonomic Keyboard. Responsibly Conceived towards the Future]; 1987. "Ergonomische Tastaturgestaltung"; (Fraunhofer-Institut); [Ergonomic Keyboard Configuration]; undated. "Report"; (STR), Technische Zeitschrift der Standard Telephon und Radio AG, vol. 7, No. 1, Jun. 1986. "The Boswell System"; (2 Seiten); Oct. 12th, 1991. "Schone Grusse vom Computer"; (Elektronic Praxis) [Best regards from the Computer]; Jan, 23rd, 1992.
Patent History
Patent number: D346376
Type: Grant
Filed: Sep 30, 1992
Date of Patent: Apr 26, 1994
Assignee: Marquardt GmbH (Rietheim-Weilheim)
Inventors: Kai-Uwe Marquardt (Tuttlingen), Ralf Sauer (Wurmlingen)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Freda S. Nunn
Law Firm: Spencer, Frank & Schneider
Application Number: 7/953,598
Classifications
Current U.S. Class: D14/115