Expired Canadian patentCanada
Use of macrolide compounds for eye diseases
CA 2102241 C · Owner: Iwaki, Yoichi · Inventors: Mochizuki, Manabu; Iwaki, Yoichi
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Macrolide compounds such as the FR-900506 and its related compounds are provided for the prevention or treatment of eye diseases, particularly, allergic conjunctivitis. Composition containing such compounds is also disclosed.
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 April 24, 1992 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2014.
- 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 24, 1992
GrantedDecember 30, 2003
Term endedApril 24, 2012
Patent numberCA 2102241 C
Classification (IPC)A61K31/43 +1 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.