Expired European patentEurope
New complex ferric salts of alpha, alpha'-(1,2-ethanediyl diimino)-bis[5-carboxy-2-hydroxybenzeneacetic acid] and the process for their preparation
EP 0230199 B1 · Applicant: ERCROS S.A.
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 December 5, 1986 and granted June 27, 1990. A European patent lasts at most 20 years from filing, so its term ended December 5, 2006.
- 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 June 5, 2012.
- 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.
FiledDecember 5, 1986
PublishedJuly 29, 1987
GrantedJune 27, 1990
Term endedDecember 5, 2006
Application numberEP 86430050
Classification (CPC)C05D9/02
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.