Expired European patentEurope
Liquid crystalline polymer film, process for producing same, and utilization thereof
EP 0628847 B1 · Applicant: NIPPON OIL CO. LTD.
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 June 2, 1994 and granted October 7, 1998. A European patent lasts at most 20 years from filing, so its term ended June 2, 2014.
- 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 December 2, 2019.
- 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.
FiledJune 2, 1994
PublishedDecember 14, 1994
GrantedOctober 7, 1998
Term endedJune 2, 2014
Application numberEP 94303956
Classification (CPC)C09K19/38 +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.