Method of removing moisture in gas supply system
CA 2347784 A1 · Owner: Yamaji, Michio · Inventors: Yamaji, Michio; Hirai, Touru; Honiden, Teruo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dewatering method for gas supply systems which is adapted for effective removal of adsorbed water by ordinary-temperature exhaust processing without using the baking method. The dewatering method for gas supply systems which remove water remaining inside a gas supply system by passing a dewatering gas through the gas supply system, characterized in that the dewatering gas flow pressure is set at values which are above a minimum pressure at which the gas flow becomes a viscous flow but which are below the saturated vapor pressure of water at the dewatering gas flow temperature. The condition under which the dewatering gas becomes a viscous flow is determined by the mean free path …
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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 September 11, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2022.
- 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.