Canadian application, no grantCanada
Process for producing cultured epidermal sheet, product and method of use
CA 2000181 A1 · Owner: Tutortec, Inc. · Inventors: Chao, Chung-Faye
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of culturing cells to form graftable sheets of epidermis and freezing these epidermal sheets for later use in autografts or allografts is disclosed herein.
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 October 5, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 5, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 2011.
- 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 5, 1989
GrantedNo grant recorded
Term endedOctober 5, 2009
Patent numberCA 2000181 A1
Classification (IPC)A61K35/36 +2 more
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.