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Expired Canadian patentCanada

Rearrangeable full availability multistage switching network with redundant conductors

CA 1236553 A · Owner: Compunetics, Inc. · Inventors: Driscoll, John; Coraluppi, Giorgio; Masson, Gerald

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

The invention relates to a multistage rearrangeable fully available network, and in particular, to a fully available rearrangeable, network having redundant conductors to alleviate the need for rearrangement and to facilitate rearrangement when needed.

Read the whole patent

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 10, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 10, 2005.
  • 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 12, 1985
GrantedMay 10, 1988
Term endedMay 10, 2005
Patent numberCA 1236553 A
Classification (IPC)H04Q3/00 +1 more

Timeline

Timeline From CIPO dates

1986198819901992199419961998200020022004Application filedJuly 12, 1985Patent grantedMay 10, 1988Term endedMay 10, 2005

Sources & verification

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