Method for treating dystonia with botulinum toxin type b
CA 2300666 C · Owner: Carlson, Steven R. · Inventors: Aoki, K. Roger; Carlson, Steven R.; Leon, Judith M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method for relieving pain associated with muscle contractions, a composition and a method of treating conditions such as cholinergic controlled secretions including excessive sweating lacrimation and mucus secretions and a method for treating smooth muscle disorders including but not limited to, spasms in the sphincter of the cardiovascular arteriole gastrointestinal system, urinary, gall bladder and rectum which method comprises administering to the patient suffering from said disorder or condition a therapeutically effective amount of Botulinum toxin selected from a group consisting of Botulinum toxin types B C, D, E, F and G.
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 December 16, 1994 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2016.
- 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.