Rotary adsorption assembly
CA 2086607 C · Owner: Lannefors, Hans Ove Bertil · Inventors: Josefsson, Leif Erling Bertil; Lannefors, Hans Ove Bertil; Panzica, Nicholas John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (10) for adsorptive filtering of contaminants from a gaseous stream is provided. The apparatus (10) includes a frame member (12). The frame (12) includes a base member (16) which is rotatable about an axis (18). A plurality of walls (20) are attached to the base member (16) and extend axially thereform to a top member for providing a plurality of circumferential segments areas (22). The walls (20) include a radially inner side (24) for defining an axially extending inner chamber (26) and a radially outer side for defining an outer periphery (28). A plurality of adsorption elements (14), each having an axial first side (32) and an, axial second side (34) are axially spaced in …
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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 July 2, 1991 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2013.
- 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.