Assay device
CA 2122597 A1 · Owner: Cope, Graham Francis · Inventors: Cope, Graham Francis; Gibbons, John; Bunce, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A disposable assay device for assaying a sample comprises a body including a reaction chamber which contains or is adapted to receive an assay reagent sensitive to a component (e.g. a nicotine metabolite) being assayed for in the sample. A sample collector/dispenser has a sample collecting chamber closed by an elastic membrane and a downwardly projecting sampling and piercing tube to enable a, predetermined quantity of sample to be dispensed into the reaction chamber. The body and the collector/dispenser are non-detachably engageable together by engagement of rib on collector/dispenser with lip on the body. A seal seals the assembly to prevent leakage of the contents after use.
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 29, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.