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Sponge Rubber Products Co

Sponge Rub
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2580202A Reinforced fibrous porous cushioning material Expired / Lapsed 1949-11-17 1951-12-25 1 Details
US2574849A Resilient compressible fibrous product Expired / Lapsed 1947-08-08 1951-11-13 2 Details
US2455534A Reticulated structure and method of making the same Expired / Lapsed 1946-01-26 1948-12-07 0 Details
US2315366A Converting bulk compound into vulcanized sponge rubber Expired / Lapsed 1940-05-08 1943-03-30 0 Details
US2292366A Retrieving and reentering long mold sections Expired / Lapsed 1939-06-17 1942-08-11 0 Details
US2200262A Rubber molding and vulcanizing process Expired / Lapsed 1936-05-18 1940-05-14 0 Details