A liposome composition having resistance to freeze/thaw damage
CA 2379366 A1 · Owner: Dibble, Andrew R. · Inventors: Abra, Robert M.; Dibble, Andrew R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liposome composition having improved protection from freeze/thaw damage is described. The liposome composition contains an osmotic gradient across the liposome lipid bilayer, wherein the osmolarity of the external medium is higher than the osmolarity of the liposome inner medium. Typically the , external medium includes a salt and a cryoprotectant to achieve the increase observed in osmolarity.
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 July 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.