Wood stud for use in making partition walls
CA 2256257 A1 · Owner: Bois + Value Inc. · Inventors: Simard, Urbain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wood stud for use in the construction of a partition wall is formed of a laminate structure consisting of a pair of outer layers of elongated boards of lumber and of an intermediate layer defined by a series of spaced wood strips disposed between the elongated boards. The strips are vertically spaced from one another so as to define elongated slots in the stud to allow passage of electrical wiring plumbing and the like , therethrough. The improved laminate structure is characterized by the dimensions of the outer boards, one of which having a width approximate double that of the other; this construction provides optimum resistance to heavy load conditions on a partition or exterior wall …
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 16, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2020.
- 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.