Protective pole caps for utility poles
CA 2244471 C · Owner: Kren Fabricators Ltd. · Inventors: Krieger, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A protective pole cap for installation onto the top of a utility pole has a downwardly-open cup-shaped body formed with radially inwardly and upwardly projecting resiliently deflectable finger-shaped projections for releasible gripping engagement with the top end portion of a pole. An external projection on the cap forms an eye for engagement by a installation pole thus allowing one-man installation, even onto an in-service pole without disconnecting power and without any mechanical fasteners. A tear-out panel at one side of the cup-shaped body is removable from the cup-shaped body to form a slot for accommodating a sky pin on the pole.
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 August 6, 1998 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 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.