Keyboard

- Marquardt GmbH
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Description

FIG. 1 is a front top and side perspective view of a keyboard showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a side elevational view thereof opposite that shown in FIG. 3;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D317595 June 18, 1991 Yoshitake
D323817 February 11, 1992 Buchin
Foreign Patent Documents
0055220 June 1982 EPX
577708 June 1933 DE2
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]. "Report"; (STR), Technische Zeitschrift der Standard Telephon und Radio AG, vol. 7, No. 1, Jun. 1986.
Patent History
Patent number: D341134
Type: Grant
Filed: Sep 10, 1991
Date of Patent: Nov 9, 1993
Assignee: Marquardt GmbH (Rietheim-Weilheim)
Inventors: Kai-Uwe Marquardt (Rietheim-Weilheim), Ekkehard Sachs (Spaichingen), Ralf Sauer (Wurmlingen)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Freda S. Nunn
Law Firm: Spencer, Frank & Schneider
Application Number: 7/757,433
Classifications
Current U.S. Class: D14/115