Sustained percutaneous delivery of a biologically active substance
CA 2396431 A1 · Owner: Advanced Research And Technology Institute, Inc. · Inventors: Johnson, Matthew S.; Mclennan, Gordon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are compositions and methods for sustained percutaneous delivery of a biologically active substance in a timed-release manner. For example the , compositions and methods can involve percutaneous injection into the tissue surrounding the adventitia of a treated artery at the time of angioplasty thereby significantly lessening smooth muscle cell proliferation and thus , intimal hyperplasia (IH) and restenosis.
Read the whole patent
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 November 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.