Expired Canadian patentCanada
Stabilizing system for solid dosage forms
CA 2008509 C · Owner: Abbott Laboratories · Inventors: Becker, Wallace E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved pharmaceutical preparation uses tromethamine and dibasic potassium phosphate or calcium carbonate to enhance stability.
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 January 24, 1990 and granted January 7, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 24, 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.
FiledJanuary 24, 1990
GrantedJanuary 7, 1997
Term endedJanuary 24, 2010
Patent numberCA 2008509 C
Classification (IPC)A61K31/59 +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.