Device for treatment of sinusitides
CA 2013323 C · Owner: Kozlov, Vladimir Sergeevich · Inventors: Kozlov, Vladimir Sergeevich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device comprises an oblong flexible body an in-, flatable cuff provided on the body between its ends and, an inflatable balloon located at one of the body ends. There are provided three passages in said body one, of which communicates with the inflatable balloon the, second passage communicates, through an end opening with the body outside surface, while the third passage communicates with the body outside surface through an opening in the body side wall between the end opening and the inflatable balloon.
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 March 28, 1990 and granted August 20, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2012.
- 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.