Expired Canadian patentCanada
Air circulating system for an isolation room, nurses station and the like
CA 2520595 C · Owner: Christison, Michael · Inventors: Christison, Michael
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A venting system to reduce the likelihood of a doctor nurse or other healthcare worker contracting an infectious disease from a patient and a method of operating the venting system are provided.
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 September 22, 2005 and granted April 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 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.
FiledSeptember 22, 2005
GrantedApril 26, 2016
Term endedSeptember 22, 2025
Patent numberCA 2520595 C
Classification (IPC)F24F7/10 +2 more
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.