Plant cell growth factor
CA 2218031 C · Owner: Matsubayashi, Yoshikatsu · Inventors: Matsubayashi, Yoshikatsu; Sakagami, Youji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a peptide of the formula:, (see above formula), wherein R1 and R2 are the same or different and each represents SO3H or H; X represents an .alpha.-amino acid or a single bond; Z1 and Z2 are the same or different and each represents an .alpha.-amino acid; and Y represents OH or NH2. The present plant growth factors promote the cell growth in all higher plants, and are particularly effective in the promotion of cell growth of monocotyledons such as asparagus, rice and maize.
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 11, 1996 and granted May 29, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2018.
- 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.