← Back to Companies

Connecticut Hard Rubber Co

Connecticu
Active Patents
0
Total Holdings
9

Patent Holdings

Filter in Explorer →
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
US2736680A Lamination of fluorocarbons such as polytrifluorochloroethy… Expired / Lapsed 1953-04-07 1956-02-28 4 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
US2643320A Heating element Expired / Lapsed 1950-04-19 1953-06-23 0 Details
US2362363A Sealing ring or the like Expired / Lapsed 1943-03-11 1944-11-07 0 Details
US1858694A Throat applicator Expired / Lapsed 1930-08-11 1932-05-17 0 Details