Chelates for the regulation of metal-deficiency phenomena in plants
CA 1049542 A · Owner: Ciba-Geigy Ag · Inventors: Baccini, Peter; Fory, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
N-carboxymethyl-N-(2-hydroxybenzyl)-asparagic acids which may be further substituted in the phenyl nucleus possess metalchelating properties for metals such as iron magnesium calcium, manganese, cobalt, nickel, copper zinc, calcium or, related metals. Chelates of this type may be used for the regulation of metal-deficiency phenomena in plants.
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
- Granted February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
- 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.