Adjustable length breathing circuit
CA 2552360 C · Owner: Burrow, Bart H. · Inventors: Irlbeck, Dennis; Burrow, Kevin D.; Mitchell, Michael G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unilimb breathing circuit has a proximal end coupling member a distal , end coupling member, an expiratory tube extending between the proximal and distal , end coupling members, and an inspiratory tube extending between the proximal and , distal end coupling members. The expiratory tube is a corrugated expiratory tube , that is expandable between a fully compressed rest position and a fully , expanded , rest position and has a plurality of intermediate rest positions. The inspiratory tube is , a corrugated inspiratory tube having a length that is variable between a fully compressed rest position and a fully expanded rest position and includes a , plurality , of intermediate rest …
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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 January 7, 2005 and granted August 5, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.