Patent Yard Sign in
Expired Canadian patentCanada

Flexible communication architecture for motion control system

CA 2091085 C · Owner: Riley, David W. · Inventors: Di Giulio, Peter C.; Lee, David K.; Ryan, Frederick W. Jr.

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 cost-effective motion control system communication architecture is provided that supports a centralized control node, distributed control nodes and smart I/O peripheral control nodes. Networks designed using this architecture, which employs a serial bus, may be readily modified or expanded. The architecture supports both real-time highly periodic communications and event-driven peer-to-peer communications.

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 March 5, 1993 and granted October 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2015.
  • 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 5, 1993
GrantedOctober 19, 1999
Term endedMarch 5, 2013
Patent numberCA 2091085 C
Classification (IPC)H04L12/40 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 5, 1993Patent grantedOct 19, 1999Term endedMarch 5, 2013

Sources & verification

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