Apparatus for the rapid thawing and freezing of blood and blood components
CA 2082386 A1 · Owner: Duncan, Alexander · Inventors: Beard, John R.; Harms, Frank H.; Duncan, Alexander
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus (110) for freezing or thawing a bag (10) of blood or blood components includes a means (136) for holding the bag (10) of frozen blood or blood components and a means (118) for creating a flow of air (120,180). Depending upon whether the apparatus (110) is being used to thaw or to freeze the bag (10) of blood or blood components the flow of air (120, 180) is either heated or refrigerated. The flow of air (180) is directed to impinge upon the surface of the bag (10) to freeze or to thaw the contents thereof. The apparatus further includes a means (140) for measuring the temperature of the frozen blood or blood components. In the disclosed embodiment the flow of heated, or …
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 May 9, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2013.
- 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.