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Expired Canadian patentCanada

Airborne particle dispenser

CA 1201095 A · Owner: Eli Lilly And Company · Inventors: Bjerregaard, Richard S.

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

Apparatus for dispensing particulate materials in accurately controllable dosages from a container carried by an aircraft includes a rotor that is disposed under the container to uniformly dispense the material from the container. The rotor has recesses to carry the particulate material from an opening in the bottom of the container to a dispensing station. The rotor is enclosed within a housing that prevents particulate material from leaving the container except in response to action of the rotor. The housing includes an edge or blade that levels off the recesses. The lips of the recesses and the edge or blade are cooperatively shaped to reduce interference with operation of the rotor. A …

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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 February 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2003.
  • 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 5, 1982
GrantedFebruary 25, 1986
Term endedFebruary 25, 2003
Patent numberCA 1201095 A
Classification (IPC)B64D1/18 +1 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedJuly 5, 1982Patent grantedFeb 25, 1986Term endedFeb 25, 2003

Sources & verification

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