Self-venting immunodiagnostic devices and methods of performing assays
CA 2178505 A1 · Owner: Oosta, Gary M. · Inventors: Schapira, Thomas G.; Oosta, Gary M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and devices are provided involving an inlet port at least one chamber, a channel providing access for fluids to flow through via capillary action or differential pressure reagents, detection means and self-venting materials. The devices allow for the appropriate mixing, reacting, incubating needed to give a detectable signal which can be read. The self-venting materials allow for the 1) displacement of gases inside a track to the outside of the device and 2) oxygen movement into the track from the outside.
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 December 28, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 28, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 28, 2016.
- 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.