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Expired Canadian patentCanada

Liquid sampling device

CA 1109748 A · Owner: Kendall Company (The) · Inventors: Taylor, Glenn N.

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 liquid sampling device comprising a tubular section, of flexible material having a wall defining a lumen for passage of liquid The device has a flow control element comprising a rigid valve member positioned in the lumen of the tubular section with the valve member having an outer sealing surface sealingly engaging against an inner surface of the tubular section. The tubular section deforms when squeezed from opposed directions against the valve member to permit passage of a liquid sample between the valve member and an inner surface of the tubular section.

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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 September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 10, 1977
GrantedSeptember 29, 1981
Term endedSeptember 29, 1998
Patent numberCA 1109748 A
Classification (IPC)A61M27/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedNov 10, 1977Patent grantedSep 29, 1981Term endedSep 29, 1998

Sources & verification

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