Vertical corner transition arrangement for semi-membrane tank
CA 2464360 A1 · Owner: Jordan, David · Inventors: Jordan, David; Walther, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the vertical corner transition arrangement (10) for semi-membrane tanks disclosed in the specification, curved horizontal side plates (16) of a semimembrane tank wall (12,14) are welded to one side of a vertical extruded aluminium modified I-beam (20,22) with a vertical tapered stiffening corner block projection (28,30) on the opposite side of the extruded aluminium I-beam (20,22), and the edge of a vertical unstiffened curved cylinder section (36) is butt-welded to the projecting edge (40) of the vertical tapered stiffening comer block (28). The curved plates (16) of an orthogonally oriented semimembrane tank wall (12,14) are welded to one side of another vertical extruded I-beam …
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 October 3, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 3, 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.