Patent Yard Sign in
Expired European patentEurope

Changeable information scroll sign

EP 0487791 B1 · Applicant: EVERBRITE INC

EPO PDF

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 November 26, 1990 and granted June 14, 1995. A European patent lasts at most 20 years from filing, so its term ended November 26, 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 May 26, 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.
FiledNovember 26, 1990
PublishedJune 3, 1992
GrantedJune 14, 1995
Term endedNovember 26, 2010
Application numberEP 90312806
Classification (CPC)G09F11/29 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedNov 26, 1990PublishedJune 3, 1992Patent grantedJune 14, 1995Term endedNov 26, 2010

Sources & verification