Reinforced hanger bar
CA 2270496 C · Owner: Akiyama, Steven Randall · Inventors: Akiyama, Steven Randall
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved hanger bar assembly includes a first hanger bar member and the plurality of longitudinal elongated slots and a plurality of reinforcing formations. The reinforcing formations being separated from one another by at least one of the slots and those slots being separated from each other by at least one of the reinforcing formations. A second hanger bar member is interfitted with the first hangar bar member the second hanger bar member having a plurality of spaced retaining projections. At least one of the retaining projections engaging at least one of the slots in order to couple the first and second hanger bar members together in a longitudinally extensible manner.
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 April 29, 1999 and granted December 23, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2021.
- 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.