Method of moving cable into or out of an installation
CA 2344961 C · Owner: Mcvaugh, Arthur K. · Inventors: Mcvaugh, Arthur K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for moving cable into or out of installations. In one embodiment there is provided method for moving cable into or out of underground and overhead installations, comprising: providing a mobile platform having a cable guiding assembly thereon, including cable pulling wheel means; positioning sheave means proximate the location of said cable installation; and movably presenting said sheave means using extensible means for providing a first straight path between said installation and said sheave and a second, straight path from said sheave to said wheel; said extensible means including first hydraulic means having a fixed reference for movement in an extension …
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 September 20, 1990 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2012.
- 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.