Building component for concrete form walls incorporating a supporting shelf
CA 2389313 C · Owner: Mensen, Jan Hendrik · Inventors: Mensen, Jan Hendrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a building component comprising first and second insulating foam panels each having inner and outer surfaces a top and bottom. The panels are arranged to define a space between them for receiving pourable building material. At least two bridging members extend between and connect the panes. The first panel extends outwardly and upwardly from its bottom to define a supporting shelf or brick ledge.
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 June 20, 1995 and granted September 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 2017.
- 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.