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Electrospace Corp

Electrospa

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3949193A	Credit card reader having two magnetic readout heads	Expired / Lapsed	1974-01-07	1976-04-06	9	Details
US3825687A	Coding means for telephone answering device	Expired / Lapsed	1972-06-16	1974-07-23	13	Details
US3652795A	Telephone transaction system	Expired / Lapsed	1970-11-25	1972-03-28	8	Details
US3590159A	Telephone-answering device	Expired / Lapsed	1968-11-15	1971-06-29	17	Details