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Expired Canadian patentCanada

Map case network virtual connection interface system

CA 1301359 C · Owner: International Business Machines Corporation · Inventors: Friedman, Robert M.; Sheftic, Richard J.; Spencer, David P.

CIPO record

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Abstract From the Canadian patent

The disclosure describes a system to permit communication between two dissimilar networks that involves an interface system. More particularly it is, an interface system to permit communication between a MAP network that is utilizing common application service elements (CASE) and a network of non-MAP computer equipment. The interface system that is described establishes a connection between the two networks which involves a process of decoding data from one network into predetermined component parts, and then encoding the component parts into data for transfer to computer equipment in the other network, and then releasing the, connection when the data transfer is completed in, accordance …

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 15, 1988
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301359 C
Classification (IPC)G06F13/38 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJuly 15, 1988Patent grantedMay 19, 1992Term endedMay 19, 2009

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