Questione giuridica chiave
Whether the state liability claim was time-barred in part regarding an earlier patent grant.
Decisione estratta
Any claim based on the 1985 patent grant was already time-barred.
Motivazione estratta
The appellate commission correctly limited the scope of the proceedings and held that claims under the liability act had become time-barred at least as far as the 1985 patent was concerned.