Management interface method
CA 2129083 A1 · Owner: Helmer, Darren · Inventors: Helmer, Darren; Burwell, Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of managing an interface to an internal message pipe, such as an FDDI bus, comprises sending a status enquiry message to request the status of each PVC having a DCLI in a specified range, receiving a subset status message containing sequence exchange numbers corresponding to the last status message sent out updating, the contents of a station's PVC's in response to the received subset status message, and propagating PVC status changes between entities on the pipe.
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 July 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 28, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.