Multifunction network station with network addresses for functional units
CA 2433607 A1 · Owner: Hart, John H. · Inventors: Hart, John H.; Seaman, Michael John; Russell, Steven P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A network interface control apparatus and a new class of multi-function computer systems for attachments to networks are provided. The memory (78 79 and 80) in, the medium access control device (50) stores a plurality of additional network addresses in addition to the assigned network addresses. The address filtering logic (77) includes circuits responsive to the additional network addresses, such as logic for blocking a particular frame on at least one of the plurality of data channels (73-75 and 81-83) when the source and destination address of a particular frame are found in the additional addresses stored in the memory. The plurality of data channels served by the media access control …
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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 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 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.