Patent Yard Sign in
Expired Canadian patentCanada

Aqueous biocide composition

CA 1306115 C · Owner: Kubota, Yutaka · Inventors: Kurita, Kazuhiko; Yanami, Tetsuo; Kubota, Yutaka

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

65702-316, Abstract of the Disclosure, Disclosed is an agricultural chemical composition in the form of an aqueous suspension, which comprises fine particles of a water-insoluble physio-logically active substance having a melting point of 15 to 70°C, which are stably dispersed in water by a watersoluble or water-dispersible polymer comprising at least one monomer selected from the group consisting of unsaturated carboxylic acids and derivatives thereof as the indispensable component as a dispersant, and a phthalic acid ester as an agent for preventing precipitation of crystals. In this agricultural chemical composition the, phthalic acid ester bleeds on the surface of the physiologically …

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 August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 22, 1988
GrantedAugust 11, 1992
Term endedAugust 11, 2009
Patent numberCA 1306115 C
Classification (IPC)A01N25/04

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 22, 1988Patent grantedAug 11, 1992Term endedAug 11, 2009

Sources & verification

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