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Expired Canadian patentCanada

Foliage fertilisers

CA 1194334 A · Owner: Nattermann (A.) & Cie. G.M.B.H. · Inventors: Bauer, Kurt H.; Etschenberg, Eugen; Osthoff, Heinrich

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Applicant: A NATTERMANN & CIE GmbH Nattermannallee 1, 5000 Cologne 30, Title: Foliage fertilisers Abstract, New foliage fertilisers containing one or more macronutrients and/or one or more micronutrients as well as 10-50% by weight (referred to total nutrients) of one or more phospholipids.

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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 October 1, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 13, 1983
GrantedOctober 1, 1985
Term endedOctober 1, 2002
Patent numberCA 1194334 A
Classification (IPC)C05B15/00

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMay 13, 1983Patent grantedOct 1, 1985Term endedOct 1, 2002

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.