Pole and method and apparatus for its production
CA 1091888 A · Owner: Frehner, Roland · Inventors: Frehner, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pole and a method for its production are provided herein. The pole which has a hyperboloid shape the nar-, rowest point of cross section of which being at the tip of the pole, said pole comprising: a hollow body constructed of fibre-reinforced plastic, wherein the fibrous reinforcement comprises strand material which is wound parallel and diagonal to the axis of the pole, and further wherein said pole structure comprises several alyers of reinforcement; wherein a first of said layers adjoining the internal hollow cavity of said pole comprises strand material running parallel to the axis of said pole; and wherein each alternating other layer comprises strand material which is wound …
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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 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.