Extrudable elastic oral pharmaceutical gel compositions and metered dose dispensers containing them and method of making and method of use thereof
CA 2007752 C · Owner: Gorman, William George · Inventors: Gorman, William George; Mariani, Elio Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Extrudable elastic oral pharmaceutical gel compositions especially containing aetaminophen as the therapeutically active agent, and manually operable metered dose dispensers containing them and method of making and method of use thereof are disclosed. The gel composition is a solution and consists essentially of by weight/volume 0.1 to 50% of a therapeutically active agent, 5 to 40% of alcoholic solvent, 5 to 40% of hexitol, 25 to 85% of water and 0.2 to 5% of seaweed polysaccharide.
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 15, 1990 and granted September 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 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.