Immobilized fluorophores for oxygen sensors
CA 2000643 A1 · Owner: Markle, Richard A. · Inventors: Markle, Richard A.; Davis, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The present invention relates to new fluorophore compounds that are permanently covalently immobilizable in a gas-permeable support material and which are useful in the continuous measurement of blood-oxygen concentrations. The compounds comprise polycyclic aromatic hydrocarbons, or substituted derivatives thereof, with cross-linking groups thereon.
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 October 13, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 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.