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Sylvania Industrial Corp

Sylvania I
Active Patents
0
Total Holdings
19

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
GB524777A Process and apparatus for making tubing and product so prod… Expired / Lapsed 1939-02-07 — 0 Details
US2411239A Apparatus for dialyzing Expired / Lapsed 1943-07-08 1946-11-19 0 Details
US2401798A Process of forming and pretesting casings Expired / Lapsed 1941-06-24 1946-06-11 0 Details
US2390780A Process of making coated textile materials and the articles… Expired / Lapsed 1943-10-02 1945-12-11 0 Details
US2386826A Process and apparatus for treating fluid compositions Expired / Lapsed 1942-01-10 1945-10-16 0 Details
US2386381A Process of producing a plasticizing composition Expired / Lapsed 1942-09-12 1945-10-09 0 Details
US2383728A Package Expired / Lapsed 1942-08-19 1945-08-28 0 Details
US2361000A Process for making dialyzing membranes and article so produ… Expired / Lapsed 1941-10-06 1944-10-24 0 Details
US2346417A Shrinkable article and process of producing the same Expired / Lapsed 1941-05-17 1944-04-11 0 Details
US2337927A Apparatus for making tubing Expired / Lapsed 1938-02-19 1943-12-28 0 Details
US2319834A Process for treating textiles Expired / Lapsed 1939-12-22 1943-05-25 0 Details
US2313058A Textile product and method of making the same Expired / Lapsed 1941-07-17 1943-03-09 0 Details
US2306781A Product containing siliceous fibers and method of making th… Expired / Lapsed 1941-07-17 1942-12-29 0 Details
US2289039A Process for making textile fibers Expired / Lapsed 1939-06-14 1942-07-07 0 Details
US2252999A Article and process for the manufacture thereof Expired / Lapsed 1938-04-13 1941-08-19 0 Details
US2240274A Article and process and apparatus for producing the same Expired / Lapsed 1936-08-07 1941-04-29 0 Details
US2227682A Method of making striped pellicles Expired / Lapsed 1939-01-25 1941-01-07 0 Details
US2172426A Tubing and process of producing the same Expired / Lapsed 1935-12-20 1939-09-12 0 Details
US2070247A Tubing and process and apparatus for producing the same Expired / Lapsed 1934-09-01 1937-02-09 0 Details