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John Blue Co Inc

John Blue

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2913992A	Hose pump	Expired / Lapsed	1957-10-29	1959-11-24	0	Details
US2854826A	Method and system for transferring a pressurized normally g…	Expired / Lapsed	1955-01-12	1958-10-07	0	Details
US2771037A	Twin cylinder spray pump	Expired / Lapsed	1952-06-11	1956-11-20	0	Details
US2761391A	Metering pump for pressurized normally-gaseous liquids	Expired / Lapsed	1951-09-26	1956-09-04	0	Details
US2615596A	Fertilizer distributor	Expired / Lapsed	1951-10-25	1952-10-28	0	Details