Steel stud and precast panel
CA 2006469 C · Owner: International Building Systems Inc. · Inventors: Bodnar, Ernest R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steel stud having two angle members parallel to one another, a plurality of struts extending from one angle member to the other, openings between the struts junction, flanges extending from one of the angle members and a, locking strip formed on the junction flange and the, junction flange being discontinuous and defining openings and a precast panel of concrete having a plurality of such studs with their junction flanges and locking strips embedded therein with the cast material extending through the openings in the junction flanges to integrally bond the cast material on opposite sides of the junction flanges.
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 December 21, 1989 and granted July 23, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2011.
- 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.