Backplane and shelf
CA 2124773 C · Owner: Northern Telecom Limited · Inventors: Mistry, Balwantrai; Wallace, Raymond Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A backplane provides first and second pluralities of connectors on a first face for connection of circuit packs to two respective busses. On a back face third and fourth, pluralities of connectors are provided. Connectors are distributed and aligned along the length of the backplane and re aligned with respective connectors of the other plurality on each face. The first and second pluralities on the front face provide connection to first and second busses of the backplane, in particular, VMEbus P1 and P2. The third and fourth pluralities on the back face provide connection to power and grounding and at least some of the connections in the second of the second pluralities of connectors on …
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 May 31, 1994 and granted November 3, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 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.