Patent Yard Sign in
Expired Canadian patentCanada

Distributed amplifier network management system

CA 2033763 C · Owner: Andrew Corporation · Inventors: Junge, Hans-Hermann; Sohner, Harold K.; Burke, Timothy

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 communication system serving a plurality of radio units in a frequency blocked area includes a remotely controlled and remotely reconfigurable network of radiating coaxial conductors. The radiating coaxial conductors along with associated amplification devices are arranged, to provide radio communication to an area around the network using radio frequency radiation released by the plurality of radiating cables. Remote control to the system is provided by a control station which transmits control data to the amplification devices through the network of radiating coaxial conductors. The amplification devices are arranged to control the radiating coaxial conductors in such a way that, in …

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

  • Filed January 8, 1991 and granted November 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 8, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 8, 1991
GrantedNovember 1, 1994
Term endedJanuary 8, 2011
Patent numberCA 2033763 C
Classification (IPC)H04B7/24 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJan 8, 1991Patent grantedNov 1, 1994Term endedJan 8, 2011

Sources & verification

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