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Expired Canadian patentCanada

Treatment of disease and conditions associated with macrophage infiltration

CA 2130762 C · Owner: Asculai, Samuel Simon · Inventors: Turley, Eva Anne; Asculai, Samuel Simon

CIPO record

Overview

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

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Abstract From the Canadian patent

Use of hyaluronic acid and/or salts thereof for the treatment of a human having a disease or condition characterized by macrophage neutrophile or other white blood cell infiltration into an area damaged by the disease or condition wherein said use comprises the use of an effective amount of hyaluronic acid and/or salts thereof for a period of time until such use is no longer required.

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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 August 24, 1994 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 24, 1994
GrantedJuly 6, 1999
Term endedAugust 24, 2014
Patent numberCA 2130762 C
Classification (IPC)A61K31/72 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedAug 24, 1994Patent grantedJuly 6, 1999Term endedAug 24, 2014

Sources & verification

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