Submucosa extracts
CA 2274902 C · Owner: Mcpherson, Timothy B. · Inventors: Hodde, Jason P.; Voytik-Harbin, Sherry L.; Badylak, Stephen F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preparing a bioactive extract from warm-blooded vertebrate submucosal tissue is described. The submucosal tissue is extracted using an aqueous solution of extraction excipients and the extracted bioactive , components are then separated from the extraction excipients to provide an isolated extract enriched in bioactive components. The isolated extract is useful, inter alia, as additive for cell growth media to promote cell growth and proliferation in vitro.
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 December 10, 1997 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2019.
- 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.