Expired European patentEurope
Double-stranded DNA which codes for a polypeptide with human fibroblast interferon activity, cloned DNA, recombinant plasmid containing the DNA and microorganism containing the recombinant plasmid
EP 0028033 B1 · Applicant: Juridical Foundation Japanese Foundation for Cancer Research
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 October 30, 1980 and granted February 19, 1986. A European patent lasts at most 20 years from filing, so its term ended October 30, 2000.
- 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 April 30, 2006.
- 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.
FiledOctober 30, 1980
PublishedMay 6, 1981
GrantedFebruary 19, 1986
Term endedOctober 30, 2000
Application numberEP 80106685
Classification (CPC)C07K14/565
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.