Selective bactericide against food-borne pathogenic bacteria
CA 2238559 A1 · Owner: Kamio, Yoshiyuki · Inventors: Sato, Naohiko; Tomita, Toshio; Kamio, Yoshiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extract from plant tissue of Stevia contains bactericidal substances which have no adverse effect on intestinal bacteria floras, but selectively act on pathogenic intestinal bacteria, and activity of the substances is extremely improved by the presence of an organic acid by, fermentation, or by fermentation and addition of an organic acid. This bactericide shows no killing effect on Lactobacilli and Bifidobacteria, is of nature origin has no side effects, and is a selective bactericides against food-borne pathogenic bacteria which keep intestinal bacteria floras in humans and animals normal.
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 May 26, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 2020.
- 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.