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Expired Canadian patentCanada

Method of reducing intestinal gas, cramping and anorectal irritation

CA 2300679 C · Owner: Braintree Laboratories, Inc. · Inventors: Pelham, Russell W.; Cleveland, Mark Vb

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

Intestinal gas, cramping and/or anorectal irritation are treated by oral administration of an effective or sufficient amount of a composition comprising polyethylene glycol preferably dispersed and/or dissolved in an aqueous medium. The PEG compositions used for the present invention are desirably substantially free of ancillary electrolytes.

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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 March 14, 2000 and granted May 13, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 2000
GrantedMay 13, 2003
Term endedMarch 14, 2020
Patent numberCA 2300679 C
Classification (IPC)A61K47/10 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedMarch 14, 2000Patent grantedMay 13, 2003Term endedMarch 14, 2020

Sources & verification

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