Method of securing corrugated baffles to an interior of a tank
CA 2136374 C · Owner: Riopel, Ronald · Inventors: Riopel, Ronald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of securing corrugated baffles to an interior of a tank in described. Firstly provide a plurality of generally elliptical shaped baffles. Each baffle has a top a bottom, a corrugated central portion with corrugations extending between the top and the bottom and uncorrugated generally semi-circular side portions. Secondly space the baffles transversely along the length of a metal skin out of which the tank is to be formed. Thirdly roll the metal skin around the baffles and weld the top portion the bottom portion and the semi-circular side portions of each of the baffles to the metal skin.
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 November 22, 1994 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2016.
- 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.