Bus-to-bus adapter
CA 2011502 C · Owner: Valashinas, James W. · Inventors: Hughes, James E.; Higham, Joseph P.; Valashinas, James W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bus-to-bus adapter is provided for coupling the input/output bus of a first data processor to the input/output bus of a second and different type of data processor. The adapter enables the transfer of data and messages from the first processor to the second processor and vice versa. The adapter includes a buffer storage unit and control logic for enabling multiple data buffers to be provided for enabling multiple independent data transfer operations to be performed in a concurrent manner. The control logic also includes a mechanism for allowing the reading out of data from a data buffer to begin before such data buffer has received all of its incoming data. The adapter further includes 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
- Filed March 5, 1990 and granted February 6, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 5, 2012.
- 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.