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Expired Canadian patentCanada

Method and apparatus for incubating eggs

CA 2073672 C · Owner: Marmon Corporation Of Canada Ltd. (The) · Inventors: Cannon, Robert W.

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

An incubator (10) for incubating and hatching eggs includes a removable air control unit (24) for humidifying heating or cooling, and circulating air in the incubator (10). The air control unit (24) is positioned between a pair of racks (32) containing egg trays (106) with removable inserts (117,126) to accommodate differently sized eggs. Sensors (40) monitor various parameters such as temperature and relative humidity. A computer (136) controls the air control unit (24) to maintain operator-selected values of the sensed parameters.

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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 October 10, 1990 and granted September 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 1990
GrantedSeptember 30, 2003
Term endedOctober 10, 2010
Patent numberCA 2073672 C
Classification (IPC)A01K41/02 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 10, 1990Patent grantedSep 30, 2003Term endedOct 10, 2010

Sources & verification

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