Gallium compounds
CA 2068744 A1 · Owner: Bradley, Fontaine Cosby · Inventors: Frost, Danielle Therese; Bradley, Fontaine Cosby; Giandomenico, Christen Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention Gallium(III) complexes of general formula I I, in which X = O2CR2, halogen, NO3 or -OA R1 = H, alkyl, alkoxy, halogen, NO2 or amino R2 = alkyl, alkoxy or aryl, each of R3 R4, R5 and R6 = H or alkyl and n = O, 1 or 2 or when n = O and R3 and, R6 both = R, then R4 and R5 together may form tetramethylene and, A = an identical gallium complex moiety to that to which the oxygen atom is linked, are well absorbed orally and are indicated as, medicaments for hypercalcemia and for cancer chemotherapy.
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 15, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.
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.