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Connecticut Hard Rubber Co

Connecticu
Active Patents
0
Total Holdings
5

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3020185A Wire reinforced polytetrafluoroethylene seal Expired / Lapsed 1958-07-28 1962-02-06 2 Details
US2764505A Method of coating silicone rubber article and product resul… Expired / Lapsed 1954-07-27 1956-09-25 2 Details
US2728356A Corrugated plastic tubing Expired / Lapsed 1953-10-16 1955-12-27 0 Details
US2719907A Heating tape and method of making same Expired / Lapsed 1952-04-19 1955-10-04 2 Details
US2705691A Lamination or coating of fluorine-substituted polyethylenes… Expired / Lapsed 1953-01-06 1955-04-05 2 Details