Extruded node
CA 2047666 C · Owner: Klingensmith, James D. · Inventors: Banthia, Vinod K.; Klingensmith, James D.; Long, Russell S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extruded node is disclosed comprising a longitudinally extending substantially hollow core (10) and at least one longitudinally extending hollow flange (20) extending outwardly of and integral with a longitudinally extending side portion (22) of the core. This invention also provides a joined structure wherein at least one longitudinally extending lineal member (60, 70, 80) having a hollow peripheral portion defined by walls having inside surfaces is adapted to mate with outside surfaces of a mating hollow flange of the extruded node. In this joined structure the peripheral portion of the lineal member is.inserted over the hollow flange of the node, to an extent that the outer peripheral …
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 6, 1990 and granted September 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 6, 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.