Peptide derivatives
CA 2059302 A1 · Owner: Mitsubishi Kasei Corporation · Inventors: Kanmera, Tatsuhiko; Nakao, Kenichiro; Nakao, Yoshihide
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure:, The present invention relates to the peptides consisting of 25-50 amino acid residues and comprising the following peptide sequence:, . . . ( I ) and amides and salts thereof. The peptides have stronger inhibitory activity against hPTH when compared with conventional inhibitors, and therefore they are expected, to be useful for the treatment of various diseases associated with calcium or phosphoric acid metabolism such as hypercalcemia and osteoporosis, or diseases associated with PTH and PTHrP.
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 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 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.