Cattle fence
CA 1091968 A · Owner: Hillman, Donald P. · Inventors: Hillman, Donald P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention comprises a cattle excluding enclosure structure adapted to restrain entry of cattle into the area defined by the structure comprising a plurality of generally vertically disposed rigid post members each having a lower ground engaging portion and an upper inwardly inclined rail supporting portion having an above-ground height approximately equal to the knee-height of a mature bovine; the upper end of the upper inwardly inclined rail supporting portion having an above ground height at least approximately equal to the belly height of a mature bovine; a plurality of horizontally disposed rail members affixed to the post members and spanning the interval defined between adjacent …
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 December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 1997.
- 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.