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Information Systems Inc

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Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2981107A	Automatic range change circuit	Expired / Lapsed	1955-12-28	1961-04-25	0	Details
US2956271A	Low level scanner and analog to digital converter	Expired / Lapsed	1957-05-06	1960-10-11	0	Details
US2922990A	Data reduction system	Expired / Lapsed	1956-12-20	1960-01-26	0	Details
US2905520A	Data recording system	Expired / Lapsed	1956-06-22	1959-09-22	0	Details