Knock down pole construction
CA 1109225 A · Owner: Unarco Industries, Inc. · Inventors: Kleine, Richard A.; Byers, Warren J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A knock down tapered pole for a power-line wherein the pole is comprised of a series of superimposed pole sections with each section including a series of U-shaped bent-corner plates of uniform cross-sectional thickness and a plurality of trapezoidal-shaped flat plates positioned between the bent-corner plates and where the corner plates and the flat plates are secured together by means of fasteners.
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 September 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 1998.
- 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.