Data transport for internal messaging
CA 2058654 C · Owner: Gray, Thomas · Inventors: Gray, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of establishing a communications bus, comprising connecting a plurality of transceivers to an automatic space division switching apparatus, and connecting said transceivers in series through the switching apparatus to form a folded bus structure, one of said transceivers forming a bus master for initiating and terminating trains of signals.
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 December 31, 1991 and granted December 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 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.
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.