Plasmids coding for B. Thuringiensis crystal protein, their production and their use in creating genetically engineered bacterial strains, the aforesaid strains per se and their use in producing said protein, said protein so-produced, insecticidal formulations comprising the same and a method of producing an insecticidal effect

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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.

Why it's free to use

• Filed April 26, 1982 and granted May 20, 1987. A European patent lasts at most 20 years from filing, so its term ended April 26, 2002.
• 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 October 26, 2007.
• 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.