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Bill Jack Scientific Instrument Co

Bill Jack

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2916670A	Electronic flasher system	Expired / Lapsed	1957-03-15	1959-12-08	0	Details
US2908943A	Process for molding two-layer polyurethane articles	Expired / Lapsed	1957-10-25	1959-10-20	2	Details
US2856239A	Means for suspending rotatable objects in space	Expired / Lapsed	1955-05-20	1958-10-14	0	Details
US2856238A	Method and means for suspension of a rotatable object in sp…	Expired / Lapsed	1955-05-12	1958-10-14	0	Details
US2677800A	Electrical control device	Expired / Lapsed	1950-10-04	1954-05-04	0	Details