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Expired Canadian patentCanada

Utilization of vinpocetine to avoid complications in particular those associated to hearing which occur with epilepsy, and treatment thereof

CA 2544035 C · Owner: Universidad Nacional Autonoma De Mexico · Inventors: Sitges Berrondo, Maria; Nekrassov Protasova, Vladimir

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Abstract From the Canadian patent

The present invention is related with the use of vinpocetine and the derivates developed from its formula that maintains the same effects for the treatment of epilepsy and its complications. Our results show that vinpocetine prevents all the abnormalities of the ABR waves that accompany the epileptic cortical activity observed for the ictal and post-ictal periods in two experimental models of epilepsy in vivo that vinpocetine also inhibits the , marked hearing loss and the characteristic EEG changes induced by two convulsing agents that differ in their mechanisms of action. These findings also indicate that the capacity of vinpocetine as an antiepileptic drug is not accompanied by …

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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 October 28, 2003 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2025.
  • 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 28, 2003
GrantedJanuary 10, 2012
Term endedOctober 28, 2023
Patent numberCA 2544035 C
Classification (IPC)A01N43/42 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 28, 2003Patent grantedJan 10, 2012Term endedOct 28, 2023

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