Combination reagent holding and test device
CA 2220574 A1 · Owner: Ostgaard, Roy · Inventors: Geiselman, Ted S.; Schoenberg, Stephen; Ostgaard, Roy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A test cartridge for use in an assay system for the assay of a liquid sample comprises a housing (60) through which the liquid sample flows during the assay. The housing (60) defines a holding chamber (61) for holding the sample (11) and a test chamber (63), wherein the holding chamber (61) and test chamber (63) are separated by a pierceable member (70) having a cut therein. In the test chamber (63) there is a partition member (6) comprising at least one reagent, and having an opening (9) therethrough. A transfer member (40) is mounted in the test chamber (63) so that it can be moved towards and pierce the pierceable member (70) and contact the liquid sample (11) in the holding …
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 March 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2019.
- 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.