Sensing system for specific substance and molecule detection
CA 2286134 A1 · Owner: Ddx Incorporated · Inventors: Robinson, Marybeth; Starzl, Timothy W.; Nunnery, David W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for detecting a specific substance or analyte of interest is provided that includes one or more sensing units and an instrument for analyzing the sensing units. Each sensing unit preferably includes a substrate (108) an , attachment layer and at least one capture layer that includes a ligand layer. In one embodiment, the attachment layer is tripartite and includes a lower binding surface (118) held to the substrate and an upper binding surface (120) that holds the ligand layer (116), together with an insulating layer (124) disposed between these two surfaces. The lower binding surface provides a durable and stable attachment to the substrate. The upper binding surface holds …
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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 February 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2020.
- 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.