Methods of raising the transmission cables and other electrical equipment carried by a utility pole without disturbing the pole foundation or disconnecting the cables and equipment
CA 2252115 C · Owner: Reisdorff, Robert A. · Inventors: Reisdorff, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of raising the transmission cables carried by a utility pole having a base end with a ground foundation supporting the pole in upright position without disturbing the pole foundation or disconnecting the cables includes the steps of anchoring opposed circumferentially spaced elongate pole support members to extend upwardly along the pole and severing the pole to define a first pole supported by the pole foundation and a second pole supported by the first pole; fixing the support members to the first pole and slidably banding them to the second pole; raising the second pole above the first pole to a level remaining below the upper ends of the support members; and fixing the lower …
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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
- Filed October 28, 1998 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2020.
- 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.