Tablets, and process for making tablets
CA 2290504 C · Owner: Van Dijk, Paul Irma Albertus · Inventors: Van Dijk, Paul Irma Albertus; Rahman, Sonia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a tablet comprising a combination of a means for providing effervecency upon contact with water as well as a soluble salt , selected from the group consisting of acetate urea, and mixtures thereof. The , means for providing effervecency upon contact with water preferably comprises citric acid and a carbonate salt, such as a bicarbonate salt. A process for making tablets according to the invention is also provided.
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 May 18, 1998 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2020.
- 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.