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Expired Canadian patentCanada

Flooring for poultry pen

CA 1294497 C · Owner: Church, Kenneth S. · Inventors: Church, Kenneth S.

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

FLOORING FOR POULTRY PEN", ABSTRACT OF THE DISCLOSURE Flooring for raising poultry and particularly broiler birds comprises a subfloor in the form of a grid formed by strips at right angles defining openings therebetween of the order of four inches across which will support the foot of a person but provides the openings for passage of waste material therethrough. An upper floor on top of the subfloor is formed of a molded grate or perforated flexible plastic sheet which is supported above the subfloor by vertical flexible pegs which are pressed into openings in the subfloor and are integral with the molded plastics floor. The pegs are resilient so that on compression by the foot of a person …

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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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1987
GrantedJanuary 21, 1992
Term endedJanuary 21, 2009
Patent numberCA 1294497 C
Classification (IPC)A01K31/00

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMay 7, 1987Patent grantedJan 21, 1992Term endedJan 21, 2009

Sources & verification

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