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European application, no grantEurope

Method for forming curved projection screen and curved projection screen formed by the method

EP 0487249 A2 · Applicant: CAE Electronics Ltd.

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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.

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Why it's free to use

  • Filed November 12, 1991 and never granted as a European patent. Had it been granted, its 20-year term would have ended November 12, 2011.
  • 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 12, 2017.
  • 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 12, 1991
PublishedMay 27, 1992
GrantedNever granted
Term endedNovember 12, 2011
Application numberEP 91310492
Classification (CPC)B29C49/0042 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedNov 12, 1991PublishedMay 27, 1992Term endedNov 12, 2011

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.