Electrically powered mobile apparatus and method with suspended power cable
CA 1262933 C · Owner: Stoldt, Erwin Frederick · Inventors: Stoldt, Erwin Frederick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-mobile electrically powered machine is provided with an electric cable for supplying power to the machine. The cable is suspending between a connection on the machine and a portable cable tower spaced from the machine. From the cable tower, the cable extends to a remote power source. This abstract is not to be construed in any way to define or limit the invention as set forth in the claims.
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
- Granted November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
- 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.