Heyman Manufacturing Co
Heyman ManActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3749818A | Electric cord stress relief combined with a strain relief g… | Expired / Lapsed | 1971-09-30 | 1973-07-31 | 23 | Details |
| US3562847A | Round split bushing | Expired / Lapsed | 1969-03-04 | 1971-02-16 | 0 | Details |
| US3516111A | Universal bushing | Expired / Lapsed | 1967-12-22 | 1970-06-23 | 0 | Details |
| US3001007A | Self-locking bushing | Expired / Lapsed | 1959-11-13 | 1961-09-19 | 0 | Details |
| US2931006A | Multiple disconnect junction-terminal bushing | Expired / Lapsed | 1958-10-16 | 1960-03-29 | 0 | Details |
| US2727299A | Process for making electrical terminals | Expired / Lapsed | 1953-02-27 | 1955-12-20 | 0 | Details |
| US2558052A | Process of making solderless blades for electrical plug caps | Expired / Lapsed | 1948-03-04 | 1951-06-26 | 0 | Details |