Bridging member for concrete form walls
CA 2704828 C · Owner: Airlite Plastics Co. · Inventors: Knowles, Graham A.; Scott, Richie (Deceased); Cooper, Bruce
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A building component having first and second high density foam panels and improved bridging members for connecting the panels that extend between and may be molded into the panels. The bridging members include a pair of elongated end plates oriented in a top to bottom direction of the panels a pair of substantially identical web members joining the end plates and being substantially symmetrically disposed above and below a central horizontal axis of the bridging member and a pair of strip members oriented in the top to bottom direction of the panels intersecting the web members. The web members have a unique configuration that maximizes load bearing capacity with a minimum amount of …
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 30, 1999 and granted September 25, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.