Radial bed vacuum/pressure swing adsorber vessel
CA 2211211 C · Owner: Praxair Technology, Inc. · Inventors: Nowobilski, Jeffert John; Smolarek, James; Fassbaugh, John Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A radial bed adsorber vessel for VPSA air separation containing a single fixed be adsorber chamber is disclosed. The unique design of this vessel reduces void volumes, improves, multi-directional flow distribution and provides the, required bed restraint for cyclic operation.
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 July 22, 1997 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 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.