Expired European patentEurope
Impeller, in particular for hairdressing appliances
EP 0490902 B1 · Applicant: Braun Aktiengesellschaft
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 August 6, 1990 and granted November 15, 1995. A European patent lasts at most 20 years from filing, so its term ended August 6, 2010.
- 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 February 6, 2016.
- 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.
FiledAugust 6, 1990
PublishedJune 24, 1992
GrantedNovember 15, 1995
Term endedAugust 6, 2010
Application numberEP 90911750
Classification (CPC)F04D29/325
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.