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Pro Phy Lac Tic Brush Co

Pro Phy La
Active Patents
0
Total Holdings
11

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2535436A Art of molding thermoplastic material by the injection mold… Expired / Lapsed 1947-11-28 1950-12-26 0 Details
US2476884A Method for tire manufacture Expired / Lapsed 1946-10-09 1949-07-19 0 Details
US2471855A Metal-plated plastic brush Expired / Lapsed 1944-03-15 1949-05-31 0 Details
US2458352A Method of preparing molecularly oriented copolymers of acry… Expired / Lapsed 1947-04-03 1949-01-04 0 Details
US2426728A Molecularly oriented copolymers of acrylonitrile, a saturat… Expired / Lapsed 1944-02-25 1947-09-02 0 Details
US2425086A Method of preparing molecularly oriented copolymers of acry… Expired / Lapsed 1944-02-25 1947-08-05 0 Details
US2387833A Polymeric acetals and process of making same Expired / Lapsed 1942-10-30 1945-10-30 0 Details
US2370126A Process of making polyvinyl acetals Expired / Lapsed 1942-03-06 1945-02-27 0 Details
US2359839A Injection molding machine Expired / Lapsed 1942-12-21 1944-10-10 0 Details
US1839699A Method of making toothbrush handles Expired / Lapsed 1929-08-02 1932-01-05 0 Details
US1676639A Handle-feeding mechanism for brush machines Expired / Lapsed 1925-02-24 1928-07-10 0 Details