Expired Canadian patentCanada
Method of treating osteoporosis with 1.alpha.24(r)-dihydroxy-22(e)-dehydro-vitamin d3
CA 2094424 C · Owner: Schnoes, Heinrich K. · Inventors: Deluca, Hector F.; Schnoes, Heinrich K.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of treating osteoporosis comprising the administration of an effective amount of 1.alpha.24(R)-dihydroxy- 22(E)-dehydro-vitamin D3.
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 20, 1993 and granted January 2, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2015.
- 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 20, 1993
GrantedJanuary 2, 2001
Term endedApril 20, 2013
Patent numberCA 2094424 C
Classification (IPC)A61K31/59
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.