Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/426,028external-prioritypatent/US4465140A/en
Priority claimed from US06/426,030external-prioritypatent/US4458767A/en
Priority claimed from NO833476Aexternal-prioritypatent/NO159685C/en
Application filed by Mobil Oil CorpfiledCriticalMobil Oil Corp
Priority to NO871495ApriorityCriticalpatent/NO871495D0/en
Publication of NO871495D0publicationCriticalpatent/NO871495D0/en