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Expired Canadian patentCanada

Microorganism sampling device

CA 2246798 C · Owner: Lowe, Seibert · Inventors: Livingston, Dwight; Marsik, Frederic J.; Lowe, Seibert

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 sampling device useful for determining whether microorganisms are present on a given surface includes a lid member and a base member. The lid member includes a flange that provides visual and tactile indications to a technician of the position of their fingers relative to an edge of the lid member. This increases the ability to avoid accidental or inadvertent contact with a sampling media. The flange is provided with a plurality of lugs that operate to maintain some spacing between the flange and a corresponding base member. This spacing is especially advantageous in situations where air flow is desirable within the sampling device. The base member includes a first cavity for supporting a …

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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 August 27, 1998 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 27, 1998
GrantedApril 23, 2002
Term endedAugust 27, 2018
Patent numberCA 2246798 C
Classification (IPC)C12M1/28 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 27, 1998Patent grantedApril 23, 2002Term endedAug 27, 2018

Sources & verification

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