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Expired Canadian patentCanada

Encapsulated solution dosage forms of sertraline

CA 2290973 C · Owner: Curatolo, William John · Inventors: Shanker, Ravi Mysore; Curatolo, William John

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Dosage forms of sertraline encapsulated in a water-immiscible vehicle shorten T max and/or reduce side effects and/or decrease sertraline precipitation in chloride ion-containing use environments such as the gastrointestinal tract.

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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 June 16, 1998 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 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.
FiledJune 16, 1998
GrantedJune 17, 2003
Term endedJune 16, 2018
Patent numberCA 2290973 C
Classification (IPC)A61K9/48 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 16, 1998Patent grantedJune 17, 2003Term endedJune 16, 2018

Sources & verification

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