Expired Canadian patentCanada
Freeze-dried pharmaceutical preparations for parenteral use
CA 1317548 C · Owner: Imai, Jun · Inventors: Kodaira, Hiromichi; Imai, Jun; Kamijo, Shinji
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Freeze-dried pharmaceutical preparations containing antibacterial quinolinecarboxylic acid derivatives are provided. These preparations are characterized by their stability against light and heat and have rapid solubility.
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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 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.
FiledDecember 23, 1988
GrantedMay 11, 1993
Term endedMay 11, 2010
Patent numberCA 1317548 C
Classification (IPC)A61K31/49 +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.