Expired Canadian patentCanada
Treatment using neublastin polypeptides
CA 2442159 C · Owner: Biogen Idec Ma Inc. · Inventors: Sah, Dinah W. Y.
Overview
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to treatments of neuropathic pain including tactile , allodynia, and to treatments for reducing loss of pain sensitivity associated with neurophathy. The present treatments involve the use of neublastin (NBN) polypeptides.
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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 February 28, 2002 and granted August 23, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 2002
GrantedAugust 23, 2011
Term endedFebruary 28, 2022
Patent numberCA 2442159 C
Classification (IPC)A61K38/00 +1 more
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.