Patent Yard Sign in
Expired Canadian patentCanada

Antineoplastic chemotherapeutic of plant origin, having high selectivity and greatly reduced toxicity, and process for the preparation thereof

CA 2087600 C · Owner: D'Arrigo, Claudio · Inventors: D'Arrigo, Claudio

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

The invention relates to active principles having an antineoplastic action extracted from plants of the family Pittosporacee and to pharmaceutical preparations based on at least one of the substances or compositions to be found in said extracts. With respect to other known antitumoral drugs these antineoplastic chemotherapeutic drugs show greater selectivity towards degenerated cells and a lower level of interference with the metabolism of healthy cells. The invention also extends to the process for extraction and separation of the components of the extracts and to their use for the preparation of antineoplastic drugs or drugs for the treatment of other pathologies.

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 22, 1992 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 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.
FiledMay 22, 1992
GrantedMarch 18, 1997
Term endedMay 22, 2012
Patent numberCA 2087600 C
Classification (IPC)A61K36/18 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 22, 1992Patent grantedMarch 18, 1997Term endedMay 22, 2012

Sources & verification

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