Highly sensitive optical immunoassay using enzyme-labeled reagents
CA 2078897 A1 · Owner: Maul, Diana Marie · Inventors: Crider, Debbie Gable; Bogart, Gregory Robert; Maul, Diana Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Highly Sensitive Optical Immunoassay Using Enzyme-Labeled Reagents, A thin film optical immunoassay device comprising a solid support substrate having an upper and a lower surface, and supporting on its upper surface an unlabeled, ligand antibody layer bound to said substrate at least, one layer comprising an immobilized enzyme conjugate complexed with an analyte of interest and capable of further interacting with an enzyme reactive delivery substance to form an insoluble reaction product said, enzyme conjugate layer and said unlabeled antibody layer having a measurably increased mass change said mass, capable of precipitation by a precipitating agent applied as a substrate thereover. The …
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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
- Filed September 23, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2014.
- 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.