Light gauge steel ribbed-channel, self-setting lath and framing system
CA 2458658 A1 · Owner: Stevens, Donald A. · Inventors: Stevens, Donald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A two-part building framing system comprised of a half inch ribbed channel expanded metal lath (10) and light gauge steel frame (15). The lath (10) self sets into the flanges (25) of a pre-fabricated steel frame (15) without the use of fasteners and can be used over an open-cavity without the use of a solid substrate. The metal lath (10) and steel frame (15) can be used in various building application and structures.
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 August 30, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2024.
- 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.