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
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract 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.
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.