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Farrand Optical Co Inc

Farrand Op

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3518702A	Implantable body actuated artificial heart system	Expired / Lapsed	1967-01-23	1970-07-07	0	Details
US3443858A	Infinite optical image-forming apparatus	Expired / Lapsed	1966-02-23	1969-05-13	2	Details
US3432219A	Wide field optical viewer with concave mirror eyepiece	Expired / Lapsed	1962-08-21	1969-03-11	2	Details
US2688896A	Navigation instrument	Expired / Lapsed	1950-04-20	1954-09-14	0	Details
US2590906A	Reflection interference filter	Expired / Lapsed	1946-11-22	1952-04-01	2	Details