Immunoassay for antigens
CA 1163460 A · Owner: Minnesota Mining And Manufacturing Company · Inventors: Oliveira, Robert J.; Silver, Spencer F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved indirect assay and article for determining an antigen in a liquid sample is disclosed. The assay utilizes a piezoelectric oscillator which has been coated with the antigen or a protein mixture containing the antigen being determined. The antigencoated oscillator is contacted with the liquid sample and a predetermined amount of an antibody specific for the antigen being determined. The amount of free antigen in the sample, if any, can be determined by measuring the change in frequency of the oscillator following contact with the liquid sample and the antibody. and referring to a standard curve.
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 March 13, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 13, 2001.
- 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.