Absorption enhancers such as bht, bha or propylgallate
CA 2522098 C · Owner: New, Roger R. C. · Inventors: New, Roger R. C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a pharmaceutical composition comprising a mixture of (a) an active macromolecular principle and (b) an aromatic alcohol absorption enhancer chosen from butylated hydroxy toluene butylated hydroxy anisole and , analogues and derivatives thereof wherein the aromatic alcohol absorption enhancer is present in an amount by weight greater than or equal to that of the active macromolecular principle, and further comprises a pharmaceutical composition comprising a mixture of (a) an active macromolecular principle (b) an aromatic alcohol absorption enhancer chosen from propyl gallate butylated hydroxy toluene, butylated hydroxy anisole and analogues and derivatives …
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 April 15, 2004 and granted November 12, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2026.
- 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.