Signalling the start of a chemical reaction by tagging substance
CA 1082594 A · Owner: Beckman Instruments, Inc. · Inventors: Anderson, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for chemically analyzing antigens or antibodies by initiating an antigen-antibody reaction in a reaction zone and measuring the light scattered by a precipitate produced by the reaction to determine the antigen or antibody concentration. In order to signal the start of the reaction a fluorescent tagging sub-, stance is included with at least the last antigen or antibody reaction component introduced into the reaction zone. The fluorescent tagging substance does not enter into the antigen-antibody reaction and is selected to emit light in a bandwidth spectrally separated from the light scattered by the precipitate. The reaction zone is monitored for the presence of the tagging …
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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 July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 1997.
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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.