Optical biosensor
CA 2030244 A1 · Owner: Bayer Aktiengesellschaft · Inventors: Mobius, Dietmar; Rosenkranz, Hans Jurgen; Siegmund, Hans-Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Optical Biosensor, A b s t r a c t, A new optical biosensor based on fluorescence energy transfer, consisting of, a) a solid support b) a single-layer or multilayer Langmuir-Blodgett (LB) film attached to a), c) at least one fluorescent dye F1 which is located in at least one of the top 4 layers of the LB film d) a molecule (receptor) which is capable of specific interaction and which is bound or located in or on the topmost layer of the LB film, and, e) a mobile fluorescent dye F2 whose excitation band overlaps, sufficiently for an energy transfer with, the emission band F1 and which, e1) is covalently bonded to a ligand which is able to bind to the receptor, or which, e2) is covalently …
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 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2012.
- 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.