Expired European patentEurope
Method for the manufacture of foamed core-supported moulded articles such as wings, rotor blades, etc. of great dimension in length and width
EP 0037987 B1 · Applicant: Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung
Overview
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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 April 3, 1981 and granted October 7, 1987. A European patent lasts at most 20 years from filing, so its term ended April 3, 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 3, 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 3, 1981
PublishedOctober 21, 1981
GrantedOctober 7, 1987
Term endedApril 3, 2001
Application numberEP 81102524
Classification (CPC)B29C44/56 +2 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.