Detection of antigen associated with hepatitis by "sandwich" method
CA 1106281 A · Owner: Cordis Corporation · Inventors: Halbert, Seymour P.; Anken, Milton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sensitive direct immunoassay system is provided for the detection of an antigen associated with hepatitis in body fluids. An antibody which reacts with a hepatitis antigen or antigens and which is uniformly bonded to an insoluble member comprising a polymeric material having irregular surfaces is, incubated with a test sample. During this first incubation a, portion of an antigen present in the test sample will combine with the antibody immobilized on the insoluble member. The antibody bonded member, to which antigen is attached is then, washed and incubated with an enzyme tagged antibody reagent comprising immunochemically reactive hepatitis antibody conjugated with a functional enzyme …
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
- Granted August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
- 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.