Patent Yard Sign in
Expired Canadian patentCanada

Multichannel, multihop lightwave communication network

CA 1287911 C · Owner: Hluchyj, Michael Gene · Inventors: Hluchyj, Michael Gene; Karol, Mark John; Acampora, Anthony

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

Abstract, The present invention relates to a multichannel multihop lightwave communication network which allows packet concurrency in the network while avoiding the need for agile optical devices. The network comprises a lightwave communication medium (10) for supporting a plurality of independent user nodes; and a plurality of N network interface units (NIUs) (11). Each NIU is connected to the lightwave medium and one or more separate user nodes and comprises a transmitter section (28-35) and a receiver section (20-27) which are each fixedly assigned to transmit and receive respectively, over a single channel, or a plurality of separate channels to or from other NIUs of the network. In a …

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 August 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 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 15, 1988
GrantedAugust 20, 1991
Term endedAugust 20, 2008
Patent numberCA 1287911 C
Classification (IPC)H04J14/00 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedMarch 15, 1988Patent grantedAug 20, 1991Term endedAug 20, 2008

Sources & verification

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