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Expired Canadian patentCanada

Improved method and apparatus for inventorying laboratory specimens

CA 2242484 C · Owner: Telgenhoff, Richard M. · Inventors: Telgenhoff, Richard M.; Nahey, Brian L.; Beavers, Steven P.

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

The new method is for inventorying frozen laboratory specimens (25) used in a hospital or research center. The method includes placing a specimen (25) at a primary location in a freezer (11), i.e. behind a particular freezer door (15), selecting an "identifier" (55) unique to that specimen (25) and displaying a symbol representing the primary location. More typically both, the storage system and the number of specimens (25) are quite large and progressively-more-specific secondary tertiary and even sub-tertiary locations will also be displayed. A secondary location may be a rack (19) behind the door (15) and a tertiary location may be a box (21) on the rack (19). Removing the specimen (25) …

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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 December 23, 1996 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 23, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 23, 1996
GrantedMarch 12, 2002
Term endedDecember 23, 2016
Patent numberCA 2242484 C
Classification (IPC)G01N1/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 23, 1996Patent grantedMarch 12, 2002Term endedDec 23, 2016

Sources & verification

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