Keyboard Patents

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A gallery of patents that describe technologies or illustrate designs relating to IBM and family keyboards, typewriters and keypunches. This includes keyswitch/actuator designs, ornamental designs (overall appearance), integrated pointing devices such as TrackPoints, and host systems such as PCs, laptops, terminals, consoles and electronic typewriters. All illustrations provided are from the patents themselves, which are believed to be within the public domain. A total of 112 patents have been recorded. The patent list is currently filtered to 2 patent(s).

U.S. Design Patent 281,701 (USD281701S)

A patent diagram depicting IBM's electronic typewriter from a front-left perspective

Applied 29 Sep 1983

Published 10 Dec 1985

Expired 10 Dec 1999

More info

Name	Electronic typewriter
Inventors	James P. Wang
Assignees	IBM, IBM Information Products
Description	An ornamental design depicting an IBM 6747 Wheelwriter 5 electronic typewriter and its Model M based keyboard assembly. This is the earliest depiction of a Model M family keyboard.

U.S. Design Patent 328,606 (USD328606S)

Patent diagrams depicting all five versions of Lexmark's electronic typewriter from a front-right perspective

Applied 24 Oct 1991

Published 11 Aug 1992

Expired 11 Aug 2006

More info

Name	Electronic typewriter
Inventors	Peter J. Mendel, Ronald A. Smith, James P. Wang
Assignees	Lexmark
Description	A series of ornamental designs depicting the IBM Wheelwriter Series II electronic typewriter family from 1988 with their Model M based keyboard assemblies. Top row: 10, 30 and 50 or 70; bottom row: 3 and 6.