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Canadian application, no grantCanada

Specific removal of ldl from blood

CA 2001358 A1 · Owner: Schonfeld, Gustav · Inventors: Ostlund, Richard E. Jr; Schonfeld, Gustav

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

32-, Abstract, Disclosed herein are particularly efficient methods to reduce cholesterol in patients by treating whole blood with agarose beads conjugated to anti-LDL antibodies or, especially when conjugated through the mediation of an amino functionality, to a polyanionic sulfate. In preferred embodiments, the beads are characterized as comprising 0.5-3% agarose preferably 2%, agarose, and having diameters of 200-300 micron. Preferred antibodies are cross-reactive with C3D1 antibodies.

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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 October 24, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 24, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 24, 1989
GrantedNo grant recorded
Term endedOctober 24, 2009
Patent numberCA 2001358 A1
Classification (IPC)C07K16/18 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 24, 1989Term endedOct 24, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.