Composite wood-concrete building member
CA 2116620 A1 · Owner: Gauthier, Daniel · Inventors: Gauthier, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the production of building or construction members constituted by wooden girders or beams forming a framework onto which is moulded a concrete plate. These members are used for the construction of composite wood-concrete panels or floors. The invention more particularly relates to the connection between the wooden girders or beams and the concrete plate or slab. This connection is constituted by at least one sheet metal strip (4) having on one edge clips in the form of indentations (5) provided with teeth (6) and on the other edge with bent portions (9) constituting a flanged edge whilst on the flank, of the sheet there are stamped portions (7) forming projections …
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 February 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 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.