Dosage device and preparation and use thereof
CA 2024291 C · Owner: Kynoch Agrochemicals (Proprietary) Limited · Inventors: Hoy, John; Van Rensburg, Phillipus Jansen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a dosage device comprises admixing at least one active ingredient which is in solid form at 25°c and which has an average particle size of less than 5 microns, with a disintegrating agent, to provide a compressible mix; and compressing the mix into a unitary dosage device.
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 August 30, 1990 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 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.