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Expired European patentEurope

A laser beam projecting unit

EP 0348237 B1 · Applicant: SHARP KABUSHIKI KAISHA

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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 June 23, 1989 and granted May 8, 1996. A European patent lasts at most 20 years from filing, so its term ended June 23, 2009.
  • 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 23, 2014.
  • 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 23, 1989
PublishedDecember 27, 1989
GrantedMay 8, 1996
Term endedJune 23, 2009
Application numberEP 89306421
Classification (CPC)H04N1/23 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJune 23, 1989PublishedDec 27, 1989Patent grantedMay 8, 1996Term endedJune 23, 2009

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