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Expired Canadian patentCanada

Pressurized gas sampling container

CA 2545571 C · Owner: Stratum Reservoir (Uk) Holdings, Ltd. · Inventors: Coleman, Todd; Coleman, Dennis

CIPO record

Overview

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

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Abstract From the Canadian patent

A gas sampling container (15) capable of obtaining isolating and transporting , samples of gas or other fluid under pressure form. The container (15) further exhibits a plurality of simple, reliable inexpensive, self sealing, valves , (2) which allow introduction flow through and exit of the gas sample. The container (15) is suitable for taking discrete or serial samples from a gas or fluid flow source and is especially suited for use in automated sampling apparatus. These containers are acceptable for shipment of compressed flammable gases under the regulatory structures of many countries.

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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

  • Filed November 12, 2004 and granted April 7, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 12, 2004
GrantedApril 7, 2015
Term endedNovember 12, 2024
Patent numberCA 2545571 C
Classification (IPC)G01N1/10

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 12, 2004Patent grantedApril 7, 2015Term endedNov 12, 2024

Sources & verification

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