Expired European patentEurope
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EP 0677693 B1 · Applicant: HEIWA SEIKI KOGYO CO., LTD.
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 March 31, 1995 and granted March 10, 1999. A European patent lasts at most 20 years from filing, so its term ended March 31, 2015.
- 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 1, 2020.
- 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.
FiledMarch 31, 1995
PublishedOctober 18, 1995
GrantedMarch 10, 1999
Term endedMarch 31, 2015
Application numberEP 95302200
Classification (CPC)F16M11/18 +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.