Patent Yard Sign in
Expired European patentEurope

Slide projector and device for storing slides to be presented with the projector

EP 0147462 B1 · Applicant: DRWIEGA, Bohdan

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed July 4, 1984 and granted November 19, 1987. A European patent lasts at most 20 years from filing, so its term ended July 4, 2004.
  • 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 January 4, 2010.
  • 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.
FiledJuly 4, 1984
PublishedJuly 10, 1985
GrantedNovember 19, 1987
Term endedJuly 4, 2004
Application numberEP 84902796
Classification (CPC)G03B21/64 +1 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedJuly 4, 1984PublishedJuly 10, 1985Patent grantedNov 19, 1987Term endedJuly 4, 2004

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.