Expired European patentEurope
Switching arrangement for switching on and off major consumer power in an alternating current circuit with several spaced switches for switching-on power for preset periods determined by an electric circuit
EP 0087675 B1 · Applicant: W.E.G.-Legrand Gesellschaft mit beschränkter Haftung
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 16, 1983 and granted October 7, 1987. A European patent lasts at most 20 years from filing, so its term ended February 16, 2003.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 16, 2008.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledFebruary 16, 1983
PublishedSeptember 7, 1983
GrantedOctober 7, 1987
Term endedFebruary 16, 2003
Application numberEP 83101448
Classification (CPC)H01H9/56
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.