Method of storing and transporting gases
CA 2196381 C · Owner: Kaneko, Katsumi · Inventors: Maeda, Yuriko; Okui, Toshiharu; Kaneko, Katsumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of storing and transporting gas wherein a large amount of gas is stored and transported by bringing the gas into contact with a porous material having fine pores and a large specific surface area in the presence of a compound serving as host at or close to room temperature. The method according to the invention enables the gas in an amount equivalent to more than 180 times as much as an unit volume of the porous material to be stored or transported in a short time even under low pressure for, example, the atmospheric pressure or up to 10.68 atm (equivalent to 10 kg / cm2 by gauge pressure) or less, and furthermore is applicable to various, kinds of gases.
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 January 30, 1997 and granted September 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.