Method of treating plant growth substrates
CA 1069331 A · Owner: Bayer Aktiengesellschaft · Inventors: Corte, Herbert; Hentschel, Claus; Van Assche, Cyriel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A method of treating a heavy metal containing plant growth supporting substrate to reduce damage to the plants or to reduce heavy metal residues in plants grown on said substrate said method comprising mixing a chelate-forming ion exchange resin with said substrate in an amount to provide from 0.2 to 10 equivalents of chelate-forming group per equivalent of heavy metal in the substrate. Le A 15 878-Ca
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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.