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Expired Canadian patentCanada

Apparatus for biological test device

CA 1092499 A · Owner: American Home Products Corporation · Inventors: Janin, Pierre R.; Hagen, Holger

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

A biological testing device comprising a container and plug is disclosed. The container in combination with the plug makes it possible to test a bacterial suspension with a number of different reagents simultaneously. The container which is open at one end has a plurality of microtubes arranged around its lower inside periphery. The plug which fits within the opening of the container distributes the bacterial suspension in substantially equal amounts to each of the microtubes having different testing reagents. A compression compensator adapted for use with the biological testing device is also disclosed. The compensator comprises a chamber which is in communication with the interior of the …

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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 December 30, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 30, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 1, 1977
GrantedDecember 30, 1980
Term endedDecember 30, 1997
Patent numberCA 1092499 A
Classification (IPC)C12Q1/02 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedJune 1, 1977Patent grantedDec 30, 1980Term endedDec 30, 1997

Sources & verification

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