Expired European patentEurope
Digital transmission system
EP 0288675 B1 · Applicant: KABEL RHEYDT 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 February 17, 1988 and granted April 13, 1994. A European patent lasts at most 20 years from filing, so its term ended February 17, 2008.
- 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 August 17, 2013.
- 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.
FiledFebruary 17, 1988
PublishedNovember 2, 1988
GrantedApril 13, 1994
Term endedFebruary 17, 2008
Application numberEP 88102272
Classification (CPC)H04Q11/0428
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.