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Expired Canadian patentCanada

Self-configuring terminal

CA 1286786 C · Owner: International Business Machines Corporation · Inventors: Hughes, David R.; Posey, Hollis P.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure Apparatus and method for defining I/O devices connected to terminals of a distributive data processing system and for downloading programs from a control computer into said terminals. A global listing containing identities of all devices that can be coupled to the terminal is prepared at each terminal. A configuration list of devices which are actually coupled to the terminal is derived from the global list. The configuration list is stored at the terminal and at the control computer. Thereafter only programs that are required for controlling the devices that are actually coupled to the terminal are downloaded into the terminal.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 19, 1987
GrantedJuly 23, 1991
Term endedJuly 23, 2008
Patent numberCA 1286786 C
Classification (IPC)G06F15/16 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMarch 19, 1987Patent grantedJuly 23, 1991Term endedJuly 23, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.