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Expired Canadian patentCanada

Stabilized injectable solutions of piroxicam

CA 1251734 A · Owner: Mack (Heinrich) Nachf. · Inventors: Fries, Walter

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

Abstract, Stable aqueous solutions of piroxicam suitable for pharmaceutical use are disclosed. These solutions all contain piroxicam in conjunction with a sub-stoichiometric amount of D-(-)-N-methylglucamine and have propylene glycol, ethanol and water as the solvent with the pH of said solutions being in the range of from about pH 8 to about pH 9. These particular pharmaceutical compositions possess excellent chemical stability properties and are especially suitable for parenteral administration.

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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 28, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 28, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 1985
GrantedMarch 28, 1989
Term endedMarch 28, 2006
Patent numberCA 1251734 A
Classification (IPC)A61K31/54 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 8, 1985Patent grantedMarch 28, 1989Term endedMarch 28, 2006

Sources & verification

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