Novel .alpha.-glucosidase inhibitors
CA 2027276 C · Owner: Merrell Pharmaceuticals Inc. · Inventors: Danzin, Charles; Ducep, Jean-Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel N-glycosyl derivatives of 1,4-dideoxy-1,4-imino-D-arabinitol, to the chemical processes for their preparation, to their a-glucosidase inhibiting properties, and to their end-use application in the treatment of diabetes, obesity and those diseases associated with retroviruses, particularly the HIV virus reported to be the causative of the acquired immune deficiency syndrome (AIDS).
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 October 10, 1990 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2012.
- 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.