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Canadian application, no grantCanada

Delivery systems for treatment of restenosis and anastomotic intimal hyperplasia

CA 2396628 A1 · Owner: Helmus, Michael N. · Inventors: Helmus, Michael N.; Tremble, Patrice; Cunanan, Crystal

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

The invention provides methods for treating injuries to one or more internal structures of a subject by administering a drug delivery vehicle to an external surface of the injured structure. The drug delivery vehicle substantially adheres to the site of administration and provides for the release of a bioactive agent that reduces or prevents further injury to the internal structure by disease processes such as hyperplasia.

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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 January 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 25, 2001
GrantedNo grant recorded
Term endedJanuary 25, 2021
Patent numberCA 2396628 A1
Classification (IPC)A61L31/16 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJan 25, 2001Term endedJan 25, 2021

Sources & verification

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