Riveted structural channel assembly and method for making same
CA 2196624 A1 · Owner: Bartholomew, Paul J. · Inventors: Warren, James K.; Bartholomew, Paul J.; Sparks, Allen S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structural channel assembly comprised of at least two elongated channel members each channel member having a back wall and a pair of spaced sidewalls extending substantially parallel therefrom to define an interior channel having a substantially U-shaped cross-section. Each of the channel members includes a corrosion resistant coating over the entire surface of said channel member. The assembly further includes a plurality of corrosion resistant coated rivets, each of the coated rivets fixably securing the channel members to each other.
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 February 3, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 3, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2019.
- 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.