Expired Canadian patentCanada
Concentrated acetaminophen solution compositions
CA 2184365 C · Owner: Dhabhar, Dadi Jamshed · Inventors: Dhabhar, Dadi Jamshed
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved concentrated liquid pharmaceutical compositions containing acetaminophen wherein said acetaminophen is formed by adding a Beckman rearrangement catalyst to 4-hydroxyacetophenone oxime.
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 February 27, 1995 and granted December 5, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 27, 1995
GrantedDecember 5, 2000
Term endedFebruary 27, 2015
Patent numberCA 2184365 C
Classification (IPC)A61K31/48 +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.