Aminocyclohexylamides for antiarrhythmic and anaesthetic uses
CA 2132841 C · Owner: The University Of British Columbia · Inventors: Wall, Richard A.; Macleod, Bernard A.; Walker, Michael J.A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides aminocyclohexylamides for use within methods of blocking sodium channels in cardiac or neuronal tissue and for use in the manufacture of medicaments to block sodium channels in cardiac or neuronal tissue. This invention also provides commercial kits comprising a pharmaceutical composition containing aminocyclohexylamides and instructions, for the use of the pharmaceutical composition for arrhythmia or for the inducement of local anaesthesia. The aminocyclohexylamides have the following formula: (see formula I)
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 March 26, 1993 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2015.
- 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.