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Expired Canadian patentCanada

Apparatus for filling bags or pouches with a perfusion liquid

CA 1301130 C · Owner: Rondeau, George · Inventors: Soubrier, Pierre; Rondeau, George

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

An apparatus for continuously filling flexible bags or pouches with a perfusion liquid contained in a reservoir to which the perfusion liquid is fed from a source. That apparatus comprises regulating means comprising a sensor which sends a signal as a function of the level of the liquid in reservoir and is connected to a regulator that continuously regulates the feeding of the perfusion liquid to said reservoir, so as to maintain the level of the liquid in reservoir close to a pre-set level.

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 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 24, 1988
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301130 C
Classification (IPC)G05D9/12 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 24, 1988Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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