Diagnostic analytical method and kit
CA 2395938 A1 · Owner: Procaryo As · Inventors: Larsen, Hans Jorgen Soiland; Gogstad, Geir Olav; Sorum, Rune Henning
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method for analysing for bacteria in a liquid sample comprising the following steps: a) contacting said sample with a substrate capable of retaining bacteria or bacterial fragments; b) staining any bacteria retained on said substrate with at least one solution comprising a first dye said staining being conducted at a pH at which the dye has an overall positive charge and the bacteria has an overall negative charge; and c) inspecting the substrate for the presence of a stain whereby to indicate the presence of bacteria in said sample; with the proviso that where said liquid sample is other than a milk sample and substrate is a filter then said filter comprises …
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 22, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 2022.
- 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.