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Expired Canadian patentCanada

Litter for small animals

CA 1307392 C · Owner: Sud-Chemie Aktiengesellschaft · Inventors: Pirotte, Wilhelm

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

For producing litter for small animals and more especially litter of cats strsw is firstly ground to produce powdered straw whlch is then pressed to form briquettes and the latter are broken down into irregular fragments wlth dimensions of the order of a few millimeters and which are very well tolerated by the animals have a, high absorbency and easily disposed of.

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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 September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 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.
FiledSeptember 21, 1988
GrantedSeptember 15, 1992
Term endedSeptember 15, 2009
Patent numberCA 1307392 C
Classification (IPC)A01K1/01

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedSep 21, 1988Patent grantedSep 15, 1992Term endedSep 15, 2009

Sources & verification

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