Surge arrester
CA 2454556 A1 · Owner: Boy, Jurgen · Inventors: Fuhrmann, Klaus-Dieter; Bobert, Peter; Boy, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an overvoltage arrester comprising a central electrode (1) and at least one outer electrode (2) in which an electrically , conductive spring band (3) is attached to the central electrode (1) and a , spring force (F) is exerted onto the outer electrode (2). According to the invention, an electrical component (4) is placed between the spring band (3) and the outer electrode (2). Said component is non-conductive during the occurrence of the trigger voltage of the overvoltage arrester and generates heat during current conduction. The spring band (3) rests against an electrically conductive contact element (5) which is attached to a spacer , element (7) by means of …
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 July 15, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2024.
- 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.