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Hanovia Chemical and Manufacturing Co

Hanovia Ch

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2490011A	Ultraviolet ray intensity meter	Expired / Lapsed	1947-06-11	1949-12-06	0	Details
US2261215A	Ultraviolet irradiator	Expired / Lapsed	1940-05-09	1941-11-04	0	Details
US2114163A	Intensity meter for ultraviolet rays	Expired / Lapsed	1936-05-23	1938-04-12	0	Details
US1939413A	Combination irrigation and ultraviolet irradiation tube	Expired / Lapsed	1932-11-29	1933-12-12	0	Details