Bushing
CA 1298888 C · Owner: Meyer Swantee, Klaus Bertil · Inventors: Meyer Swantee, Klaus Bertil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bushing for the passage of at least one cable through a hole in a wall or similar structure, affording protection against electromagnetic overload and/or interference which bushing comprises two cable lead-through tubes which are each provided with a flange at its and which are detachably connected together with the aid of these flanges whilst at least one earth plate is disposed between these flange and electrically coupled therewith through a conductor in order to contact an electrically conducting braiding of the cable(s) passed through when the bushing is fully operational.
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 April 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 14, 2009.
- 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.