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Expired Canadian patentCanada

Automated sampler-injector apparatus and method for sampling a quantity of sample and testing portions of said quantity

CA 1312480 C · Owner: Baldwyn, Einar D.N. · Inventors: Baldwyn, Einar D.N.

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 automated sampler-injector apparatus and method of sampling, for taking samples from multiple sources and repetitively injecting small portions of a quantity sampled from a single source into a liquid chromatograph column for analysis. The apparatus comprises a syringe means and injector tube forming a syringe loop for drawing a quantity of sample from a sample container. Carousel means for positioning a selected sample container beneath the syringe loop is provided, and an injector valve having a sample loop therein is further provided for receiving portions of a quantity of sample from the syringe loop and retaining such portion in the sample loop and further transferring the portion …

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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 January 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 19, 1988
GrantedJanuary 12, 1993
Term endedJanuary 12, 2010
Patent numberCA 1312480 C
Classification (IPC)B01L3/02

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedFeb 19, 1988Patent grantedJan 12, 1993Term endedJan 12, 2010

Sources & verification

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