Automatic raking system for animal litter boxes
CA 1264696 C · Owner: Hohenstein, Donald G. · Inventors: Hohenstein, Donald G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Apparatus for receiving and disposing of animal wastes and particularly the bodily wastes of cats include, an upper chamber adapted to hold a supply of preferably nonabsorbant litter material, a rake assembly for separating waste products from the litter material a, removable container for receiving the wastes and automatic control apparatus for energizing the rake and tumbling the container at an appropriate time after the departure of the animal.
Read the whole patent
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 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.