Expired Canadian patentCanada
Medical heat exchange
CA 1266654 C · Owner: Stewart, Rodger Lee · Inventors: Stewart, Rodger Lee
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 medical device, such as an oxygenator with a heat, exchanger portion comprising a coiled corrugated, flattened, tube.
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
- Granted March 13, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 1986
GrantedMarch 13, 1990
Term endedMarch 13, 2007
Patent numberCA 1266654 C
Classification (IPC)F28F1/10 +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.