Head rail
CA 2123476 A1 · Owner: Valliere, Pierre · Inventors: Valliere, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A head rail arrangement for the, construction of a wall support structure for non load bearing walls comprising first and second head rails. The wall support structure is fixedly connected to the second head rail. The second head rail is flexibly suspended from the first head rail thereby allowing slight shifts of the building structure without damage to the wall structure.
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 12, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 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.