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Expired Canadian patentCanada

Apparatus for mixing a gas main flow with at least one gas subflow

CA 1257583 A · Owner: Kramer, Carl · Inventors: Kramer, Carl

CIPO record

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

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Abstract From the Canadian patent

An apparatus for mixing a gas main flow with at least one gas subflow comprises a round inlet region which tapers in the flow direction and over the periphery of which influx openings are distributed for the gas subflow. From these influx openings the gas subflow emerges with a tangential direction component, giving a good mixing with the gas main flow.

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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 July 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 18, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 1986
GrantedJuly 18, 1989
Term endedJuly 18, 2006
Patent numberCA 1257583 A
Classification (IPC)B01F5/00

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJan 24, 1986Patent grantedJuly 18, 1989Term endedJuly 18, 2006

Sources & verification

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