Method for measuring antigens or antibodies in biological fluids using ligand labeled antigens or ligand labeled antibodies
CA 1291028 C · Owner: Diagnostic Products Corporation · Inventors: Alaba, Olusola O.; El Shami, A. Said; Kasal, Charles A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is described for measuring the level of circulating antigens or antibodies by reacting a patient sample with a ligand labeled specific antigen or antibody carried on a liquid matrix in the presence of a differently labeled specific anti-antigen or labeled specific anti-antibody this immuno-, logical complex thus formed is reacted with an immobilized anti-ligand on a solid support which is directed against the ligand attached to the specific antigen or antibody through the liquid matrix, and subsequently the solid phase is washed and checked for the label on the anti-antigen or anti-antibody which is directly proportional to the concentration of specific antigen or antibody. A …
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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
- Granted October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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
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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.