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Expired Canadian patentCanada

Use of indole derivatives for the treatment of various diseases

CA 2202484 C · Owner: Gupta, Paul · Inventors: Jones, Shirley; Gupta, Paul; Wythes, Martin James

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention provides the use of a compound of formula (I) wherein R1 and R2 independently represent H or C1-C6 alkyl or, a pharmaceutically acceptable salt thereof in the manufacture of a, medicament for the treatment of: dermatological disorders; peripheral neuropathies; arthritis; gastrointestinal or urogenital diseases; headache associated with substances or their withdrawal; tension headache; pediatric migraine; post-traumatic dysautonomic cephalgia; orofacial pain; allergic or chronic obstructive airways diseases; glaucoma or ocular inflammation; or prophylaxis of migraine.

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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 October 5, 1995 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 5, 1995
GrantedDecember 18, 2001
Term endedOctober 5, 2015
Patent numberCA 2202484 C
Classification (IPC)A61K31/40 +2 more

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedOct 5, 1995Patent grantedDec 18, 2001Term endedOct 5, 2015

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.