Patent Explorer

Browse, filter, and analyze 9 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US3169428A Single sheet classifier Blaw Knox Co Expired / Lapsed 1959-12-22 1965-02-16 1979-12-22 0.0 yrs 2
US3058621A Ladle feeding means Blaw Knox Co Expired / Lapsed 1959-09-14 1962-10-16 1979-09-14 0.0 yrs 0
US2888864A Base paver Blaw Knox Co Expired / Lapsed 1953-12-08 1959-06-02 1973-12-08 0.0 yrs 0
US2760791A Pressure seal construction for rotating members Blaw Knox Co Expired / Lapsed 1950-11-30 1956-08-28 1970-11-30 0.0 yrs 0
US2745484A Continuous density control of a liquid Blaw Knox Co Expired / Lapsed 1950-03-27 1956-05-15 1970-03-27 0.0 yrs 2
US2409768A Liquid level control Blaw Knox Co Expired / Lapsed 1944-12-18 1946-10-22 1964-12-18 0.0 yrs 0
US2046693A Weighing batcher Blaw Knox Co Expired / Lapsed 1934-03-29 1936-07-07 1954-03-29 0.0 yrs 0
US1994797A Apparatus for feeding and weighing material Blaw Knox Co Expired / Lapsed 1931-11-27 1935-03-19 1951-11-27 0.0 yrs 0
US1982127A Apparatus for measuring bulk materials Blaw Knox Co Expired / Lapsed 1931-11-27 1934-11-27 1951-11-27 0.0 yrs 0