Aqueous suspension for diagnostic tests
CA 2002672 A1 · Owner: Brouwer, Wilfridus Maria · Inventors: Brouwer, Wilfridus Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an aqueous suspension for diagnostic or immunodiagnostic tests, comprising nonpolymer nuclei surrounded by a hydrophilic copolymer that contains functional groups, and also to a method for the preparation of this suspension. The invention also relates to a method for the detection of a specifically binding substance or immunochemically active component in a test fluid and to a, reagent and a test kit to be used when employing said detection methods.
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 November 9, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 9, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2011.
- 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.