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Bellofram Corp

Bellofram

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3969991A	Rolling diaphragm and rolling diaphragm devices	Expired / Lapsed	1975-03-03	1976-07-20	4	Details
US3391644A	Double acting actuator or pump having a pair of rolling dia…	Expired / Lapsed	1965-10-21	1968-07-09	2	Details
US3375760A	Rolling diaphragm device having springbiased piston and mea…	Expired / Lapsed	1966-07-26	1968-04-02	0	Details
US3083734A	Rolling seal diaphragm	Expired / Lapsed	1959-07-29	1963-04-02	2	Details