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Expired Canadian patentCanada

Inhibiting bone resorption

CA 2294595 C · Owner: Merck Sharp & Dohme Corp. · Inventors: Daifotis, Anastasia G.; Yates, A. John; Santora, Arthur C. Ii

CIPO record

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

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Abstract From the Canadian patent

Disclosed are methods for inhibiting bone resorption in mammals while minimizing the occurrence of or potential for adverse gastrointestinal effects. Also disclosed are pharmaceutical compositions and kits for carrying out the therapeutic methods disclosed herein. The compounds are bisphosphonates selected from the group consisting of alendronate, cimadronate, clodronate, tiludronate etridronate, ibandronate, risedronate, piridronate pamidronate, zolendronate, optionally in combination with a histamine H2 antagonist.

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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 July 17, 1998 and granted August 21, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 17, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 17, 1998
GrantedAugust 21, 2001
Term endedJuly 17, 2018
Patent numberCA 2294595 C
Classification (IPC)A61K31/66 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJuly 17, 1998Patent grantedAug 21, 2001Term endedJuly 17, 2018

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