European application, no grantEurope
Method for producing self-supporting micro-structures, consisting of thin, flat sections or membranes, and use of micro-structures produced by said method as a resistance grid in a device for measuring weak gas flows
EP 1181239 A1 · Applicant: SIEMENS AKTIENGESELLSCHAFT
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 March 23, 2000 and never granted as a European patent. Had it been granted, its 20-year term would have ended March 23, 2020.
- 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 September 23, 2025.
- 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 23, 2000
PublishedFebruary 27, 2002
GrantedNever granted
Term endedMarch 23, 2020
Application numberEP 00920411
Classification (CPC)G01F1/6845 +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.