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Canadian application, no grantCanada

Antipylori agent

CA 2252467 A1 · Owner: Nagai, Kouzou · Inventors: Nagai, Kouzou; Kougo, Yutaka; Moriyama, Masami

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

An antibacterial peptide which has been revealed to have an efficacious bactericidal and bacteriostatic effect on Helicobacter pylori. Owing to this effect, this peptide is efficacious as an antiulcer agent and a remedy for wound.

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 April 23, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 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.
FiledApril 23, 1997
GrantedNo grant recorded
Term endedApril 23, 2017
Patent numberCA 2252467 A1
Classification (IPC)A61K38/17

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 23, 1997Term endedApril 23, 2017

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.