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Expired Canadian patentCanada

Use of a prostaglandin in combination with an adrenergic blocking agent for reduction of intraocular pressure

CA 1314220 C · Owner: Bito, Laszlo Z. · Inventors: Stjernschantz, Johan Wilhelm; Bito, Laszlo Z.

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Abstract From the Canadian patent

Abstract of The Disclosure This invention provides a method for treating ocular hypertension or glaucoma in a subject's eye. The method comprises contacting the surface of the eye with an effective intraocular pressure reducing amount of a mixture of an adrenergic blocking agent and a prostaglandin or prostaglandin derivative in an ophthalmically compatible carrier, so as to reduce the intraocular pressure of the eye and maintain such reduced intraocular pressure. This invention also provides a composition for topical treatment of ocular hypertension or glaucoma in the eye of a subject. The composition comprises an effective intraocular pressure reducing amount of a mixture of an adrenergic …

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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

  • Granted March 9, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 9, 2010.
  • 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 30, 1988
GrantedMarch 9, 1993
Term endedMarch 9, 2010
Patent numberCA 1314220 C
Classification (IPC)A61K31/55

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 30, 1988Patent grantedMarch 9, 1993Term endedMarch 9, 2010

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