Dehydrated liposomes
CA 1294548 C · Owner: Bally, Marcel B. · Inventors: Hope, Michael J.; Cullis, Pieter R.; Bally, Marcel B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for loading liposomes with a charged material comprises the steps of:, a) preparing a liposome preparation which includes liposomes having a concentration gradient of one or more charged species across their membranes, the concentration gradient being capable of generating a transmembrane potential having an orientation which will load the charged material into the liposomes;, b) dehydrating the liposome preparation; c) storing the dehydrated preparation; d) rehydrating the dehydrated preparation; and e) admixing the charged material with the rehydrated preparation. The liposomes may also contain a protective sugar. The liposomes are useful in that they can be loaded with drugs to …
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
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.