Dna and use thereof
CA 2019363 C · Owner: Takeda Chemical Industries, Ltd. · Inventors: Arimura, Akira; Onda, Haruo; Kimura, Chiharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are (1) a DNA containing a DNA segment coding for PACAP38; (2) a precursor protein of PACAP38; (3) a transformant containing a DNA having a DNA segment coding for PACAP38; (4) a method for preparing mature PACAP38 comprising cultivating the transformant described in the above (3) producing and, accumulating a protein in a culture and collecting the, resulting protein; and (5) a method for preparing the above polypeptide comprising condensing a partial amino acid or a peptide which can constitute the mature PACAP38 with a residual, portion, and removing a protective group if a product has the protective group. The DNA is applied to experimental animals to understand their brain …
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 June 20, 1990 and granted May 30, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 20, 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.