Sleeved filter for a breathing circuit
CA 2302757 C · Owner: Leagre, Michael A. · Inventors: Leagre, Michael A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sleeved filter apparatus prevents germs from becoming resident on both the interior and exterior of a breathing device (10). The sleeved filter apparatus includes a filter member (12), and a sleeve member (14). The filter member (12) is composed of a first enclosure half and a second enclosure half (60, 62) which are sealed on their interior ends (73 80). The external ends of the , two enclosure halves have connectors (36 76) for connecting the sleeved , filter apparatus to a breathing device and/or a patient airway component. A filter element (64) is disposed inside the filter member enclosure for preventing gases from flowing between the first connector and the second , connector …
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 February 2, 1998 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2020.
- 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.