Power pole wiring chamber
CA 2003610 C · Owner: Wuertz, Emil S. · Inventors: Wuertz, Emil S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A power pole is constructed so that a U-shaped body portion forming a power conductor channel extends beyond a similarly shaped portion forming a communications conductor channel by a predetermined distance. A cover plate and a top plate are provided to close this extending portion to form a wiring chamber. The cover plate is provided with edges which interlock with the edges of the power channel structure, the edges being crimped to form a permanent assembly. The top plate is removable to provide access to the interior of the chamber.
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 November 22, 1989 and granted August 17, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 22, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 22, 2011.
- 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.