Expired Canadian patentCanada
Preparation of tablets of increased strength
CA 2117351 C · Owner: Lo, Julian Belknap · Inventors: Lo, Julian Belknap
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Tablets of increased strength are manufactured by combining and compressing a meltable binder excipients and a, pharmaceutically active agent into a tablet melting the binder in the tablet, and then solidifying the binder.
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 September 10, 1992 and granted March 3, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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.
FiledSeptember 10, 1992
GrantedMarch 3, 1998
Term endedSeptember 10, 2012
Patent numberCA 2117351 C
Classification (IPC)A61K9/20
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.