Patent Yard Sign in
Expired Canadian patentCanada

Automated matrix for communication line connections

CA 1299710 C · Owner: Sx Corporation · Inventors: Pickens, Herman L.; Cooley, William E.

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A crossconnect system utilizes a computer accessed matrix of crosspoints formed by a set of parallel conductors oriented perpendicular to a second set of parallel conductors with the sets lying in parallel planes. The crosspoints form open contacts which can be closed by stepper motor driven spring contacts to connect selected conductors from one set with selected conductors from the other set. A microprocessor system drives the stepper motor and implements movement of the spring contacts to the selected crosspoints.

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 April 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 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.
FiledSeptember 26, 1988
GrantedApril 28, 1992
Term endedApril 28, 2009
Patent numberCA 1299710 C
Classification (IPC)H04Q1/14 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedSep 26, 1988Patent grantedApril 28, 1992Term endedApril 28, 2009

Sources & verification

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