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Columbia Pictures Industries Inc

Columbia P

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3935534A	Converter-tuner for information transmission system	Expired / Lapsed	1972-11-15	1976-01-27	19	Details
US3916091A	Electronic communications system for supplementary video pr…	Expired / Lapsed	1973-01-31	1975-10-28	70	Details
US3899633A	Subscription television system	Expired / Lapsed	1972-05-12	1975-08-12	11	Details
US3835387A	Control circuitry for information transmission system	Expired / Lapsed	1972-11-15	1974-09-10	43	Details