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Expired European patentEurope

Method and apparatus for coating a passivation film on ink channels of an ink jet printhead

EP 0660758 B1 · Applicant: Compaq Computer Corporation

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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 September 3, 1993 and granted June 17, 1998. A European patent lasts at most 20 years from filing, so its term ended September 3, 2013.
  • 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 March 3, 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.
FiledSeptember 3, 1993
PublishedJuly 5, 1995
GrantedJune 17, 1998
Term endedSeptember 3, 2013
Application numberEP 93921390
Classification (CPC)B05C11/08 +1 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedSep 3, 1993PublishedJuly 5, 1995Patent grantedJune 17, 1998Term endedSep 3, 2013

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