Systems and methods for removing undesired matter from blood cells
CA 2086604 A1 · Owner: Johnson, Samira · Inventors: Johnson, Kenneth M.; Johnson, Samira
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Systems and methods for collecting blood substantially free of undesired matter assure that accurate crossmatching and typing of cellular blood components can be done prior to transfusion even, though the cellular components are collected and stored in different containers. The blood containing the undesired matter is collected in a blood collection container (16) including a tube (22) that is sealed for retaining samples of the collected blood for later analysis. The collected blood is conveyed out of the blood collection container (16) for removal of undesired matter and is collected in a separate transfer container (34) for storage. The distal end (29) of the sealed tube (22) containig …
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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 May 21, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 21, 2014.
- 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.