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SPRAGUE SPECIALTIES Co

SPRAGUE SP

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2249091A	Process for the manufacture of electrolytic devices	Expired / Lapsed	1937-06-15	1941-07-15	0	Details
US2193710A	Electrical condenser	Expired / Lapsed	1937-09-01	1940-03-12	0	Details
US2016303A	Electrolytic condenser and circuit arrangement therefor	Expired / Lapsed	1933-04-25	1935-10-08	0	Details
US2011442A	Discharge tube filter	Expired / Lapsed	1930-12-01	1935-08-13	0	Details
US1969630A	Electrolytic condenser	Expired / Lapsed	1933-02-09	1934-08-07	0	Details