← Back to Companies

Stackpole Carbon Co

Stackpole

Active Patents

0

Total Holdings

4

Patent Holdings

Filter in Explorer →

Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2896043A	Electric switch formed from magnets	Expired / Lapsed	1957-02-11	1959-07-21	0	Details
US2382338A	Electric contacts	Expired / Lapsed	1943-05-18	1945-08-14	0	Details
US2368306A	Method of treating electrodes	Expired / Lapsed	1941-05-02	1945-01-30	0	Details
US2255120A	Weldable silver-graphite contact and method of making it	Expired / Lapsed	1939-10-13	1941-09-09	0	Details