Benzhydryloxyethylpiperazine derivatives, processes for their preparation and pharmaceutical compositions in which they are present
CA 1306461 C · Owner: Ollivier, Roland · Inventors: Buzas, Andre; Ollivier, Roland; Merour, Jean-Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to benzhydryloxyethylpiperazine derivatives of the formula: It also relates to processes for the preparation of the said derivatives and pharmaceutical compositions in which they are present. The said derivatives have an antihistaminic activity without a sedative component.
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
- Granted August 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 2009.
- 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.