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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US2482878A Reinforced refractory pipe insulation Carnegie Illinois Steel Corp Expired / Lapsed 1946-11-06 1949-09-27 1966-11-06 0.0 yrs 0
US2447208A Extensometer for indicating percent elongation Carnegie Illinois Steel Corp Expired / Lapsed 1945-05-17 1948-08-17 1965-05-17 0.0 yrs 0