Composition for removing or inactivating harmful components in blood or other extracellular body fluids
CA 2058442 A1 · Owner: Christensen, Henry M. · Inventors: Andreasen, Hans B.; Christensen, Henry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition for removing or inactivating harmful components including virus from blood or other extracellular liquids comprises a crownether compound substituted on a polysaccharide preferably, dextrane. The composition may be soluble in water preferably, for intraveneous application or insoluble for extracorporeal, application.
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 June 14, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.