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Expired Canadian patentCanada

Carrier for scented material

CA 1309979 C · Owner: Dow Corning Corporation · Inventors: Weiss, Lon Louis; Cook, John Metcalfe

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A dispenser for broadcasting a scent is particularly useful in connection with insect pheromones a, quantity of volatile pheromone carrying substance is packaged as a solid or gel in a hollow tube. A carrier can be provided for the tube, having a surface to which the tube is to be affixed with the longitudinal axis of the tube substantially parallel to the surface of the carrier and the, tube being disposed directly on the surface of the carrier. The carrier has at least one air circulation opening aligned perpendicular to the longitudinal axis of the tube and one or more stops preventing relative displacement of the tube and the carrier. Preferably, the carrier is a one piece integrally …

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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 November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 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.
FiledMay 6, 1988
GrantedNovember 10, 1992
Term endedNovember 10, 2009
Patent numberCA 1309979 C
Classification (IPC)A01M1/02 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMay 6, 1988Patent grantedNov 10, 1992Term endedNov 10, 2009

Sources & verification

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