Livestock handling device
CA 2013497 C · Owner: Priefert Mfg. Co. Inc. · Inventors: Priefert, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An animal handling device including a ground supported base frame and a squeeze chute pivotally supported on the base frame by an upright lever assembly. The squeeze chute includes two side members, a flat first side member and a second, generally open second side member that are, pivotally connected at their lower end portions to permit movement of the second side member relative to the first side member into and out of an animal restraining position. By means including the upright lever assembly the squeeze, chute is pivotally movable with the lever assembly toward the first side member relative to the base frame between an upright animal receiving position and an animal shift position …
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
- Filed March 30, 1990 and granted December 14, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 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.
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.