Expired European patentEurope
A method of making shell segments for expansion bolts, apparatus for carrying out the method and expansion bolt comprising shell segments made by the method
EP 0051901 B1 · Applicant: Verenigde Bedrijven van Thiel (Van Thiel United) B.V.
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 November 5, 1981 and granted September 12, 1984. A European patent lasts at most 20 years from filing, so its term ended November 5, 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 May 5, 2007.
- 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.
FiledNovember 5, 1981
PublishedMay 19, 1982
GrantedSeptember 12, 1984
Term endedNovember 5, 2001
Application numberEP 81201249
Classification (CPC)B23P15/00 +1 more
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.