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Expired Canadian patentCanada

Agrochemical formulation aid composition and uses thereof

CA 2534020 C · Owner: Adjuvants Plus Inc. · Inventors: Brown, William G.; Stewart, James F.

CIPO record

Overview

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

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Abstract From the Canadian patent

There is provided an agrochemical formulation aid composition comprising about 1 to 99 parts by weight of monocarbamide dihydrogen sulphate and 50 to 10 parts by weight of a blend, said blend comprising: 1-99% by weight of a phosphate ester blend; 99-1% by weight of a tallow amine ethoxylate; 0-5% by weight of a fatty acid methyl ester; 0-~0.5% by weight of a free fatty acid blend; 0-0.5% by weight of 2N-octanol; 0-1% by weight of oleyl-cetyl alcohol; 0-0.1% by weight of N-butanol; 0-1.5% by weight of polyethylene glycol; and balance, if any, of water. The formulation aid can also be formulated as a Clathrate (dry) free flowing product also consisting of Atplus UCL 1007 clathrate …

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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

  • Filed July 30, 2004 and granted February 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 30, 2004
GrantedFebruary 28, 2012
Term endedJuly 30, 2024
Patent numberCA 2534020 C
Classification (IPC)A01N47/28

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJuly 30, 2004Patent grantedFeb 28, 2012Term endedJuly 30, 2024

Sources & verification

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