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Expired European patentEurope

DRAM memory cell for DRAM memory device and method of making the same

EP 1162663 B1 · Applicant: Infineon Technologies AG

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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.

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Why it's free to use

  • Filed June 6, 2001 and granted August 14, 2013. A European patent lasts at most 20 years from filing, so its term ended June 6, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 6, 2001
PublishedDecember 12, 2001
GrantedAugust 14, 2013
Term endedJune 6, 2021
Application numberEP 01112934
Classification (CPC)H10B12/33 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedJune 6, 2001PublishedDec 12, 2001Patent grantedAug 14, 2013Term endedJune 6, 2021

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.