Expired Canadian patentCanada
Liposomal vesicles for intraperitoneal administration of therapeutic agents
CA 1320443 C · Owner: Vestar, Inc. · Inventors: Richer, Leroy Leonard
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Liposomal vesicles adapted for sustained delivery of therapeutic agents to the peritoneal cavity and methods for, their manufacture and use are described.
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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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 6, 1988
GrantedJuly 20, 1993
Term endedJuly 20, 2010
Patent numberCA 1320443 C
Classification (IPC)A61K9/12
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.