Patent Yard Sign in
Expired European patentEurope

Temperature compensation for highly sensitive permanent-magnetic holding relays

EP 0042056 B1 · Applicant: SCHUPA-ELEKTRO-GMBH + CO KG

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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 April 30, 1981 and granted October 17, 1984. A European patent lasts at most 20 years from filing, so its term ended April 30, 2001.
  • 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 October 30, 2006.
  • 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.
FiledApril 30, 1981
PublishedDecember 23, 1981
GrantedOctober 17, 1984
Term endedApril 30, 2001
Application numberEP 81103246
Classification (CPC)H01H71/142 +1 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedApril 30, 1981PublishedDec 23, 1981Patent grantedOct 17, 1984Term endedApril 30, 2001

Sources & verification