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Expired Canadian patentCanada

Flame inhibiting grate for a cooking grill

CA 2116905 C · Owner: Campbell, Michael F. · Inventors: Campbell, Michael F.

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 present invention relates to a grate for a cooking grill. The grill includes a heat source such as an open flame heat source or electric resistance-type heat source. The grate includes a plurality of support members, and a plurality of elongated rails disposed in spaced apart parallel relationship with each other and extending transversely to the support members. The spaces between the rails prevent flames from passing through the spaces. The flames may be produced e.g. by the heat source and/or a grease fire.

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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 March 3, 1994 and granted February 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 3, 1994
GrantedFebruary 24, 1998
Term endedMarch 3, 2014
Patent numberCA 2116905 C
Classification (IPC)F23H1/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMarch 3, 1994Patent grantedFeb 24, 1998Term endedMarch 3, 2014

Sources & verification

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