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ENDOWMENT

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4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2156440A	Combination time lapse and photoelectric exposure control m…	Expired / Lapsed	1937-08-18	1939-05-02	0	Details
US2060735A	Method and means for applying nutrient solution to plants	Expired / Lapsed	1935-07-16	1936-11-10	0	Details
US2025208A	Timing axis for cathode ray oscillographs	Expired / Lapsed	1934-10-19	1935-12-24	0	Details
US1978461A	Timing axis for cathode ray oscillograph	Expired / Lapsed	1933-11-25	1934-10-30	0	Details