Monoclonal antibodies for detecting water treatment polymers
CA 2089395 C · Owner: Fmc Corporation (Uk) Limited · Inventors: Weatherby, Pauline; Stimson, Howard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for determining the presence and/or concentration of a water treatment polymer in an aqueous sample comprising producing a, polyclonal or monoclonal antibody to the water treatment polymer; and using the antibody so produced as a reagent in an immunoassay conducted on the aqueous sample.
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
- Filed February 12, 1993 and granted July 10, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2015.
- 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.