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Expired Canadian patentCanada

Chewable drug-delivery composition

CA 2103443 C · Owner: Lds Technologies, Inc. · Inventors: Tuliani, Vinod V.; Geyer, Robert P.

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

A non-aqueous, chewable composition for oral delivery of unpalatable drugs is provided. The composition contains the drug intimately dispersed or dissolved in a pharmaceutically acceptable lipid that is solid at room temperatures. The composition also has a matrix that contains a granulating agent for the total composition and a rapid dispersal agent and optionally additives such as buffering agents, flavoring agents surfactants, and the like. Methods for the preparation of the chewable compositions are also provided.

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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 May 27, 1992 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1992
GrantedDecember 22, 1998
Term endedMay 27, 2012
Patent numberCA 2103443 C
Classification (IPC)A61K9/42 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 27, 1992Patent grantedDec 22, 1998Term endedMay 27, 2012

Sources & verification

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