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CA Parsons and Co Ltd

CA Parsons

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2865611A	Rotary regenerative heat exchanger	Expired / Lapsed	1953-03-13	1958-12-23	0	Details
US2604810A	Double-beam optical system applicable to spectrometers and …	Expired / Lapsed	1950-03-17	1952-07-29	0	Details
US2047555A	Manufacture of hollow turbine blades	Expired / Lapsed	1934-05-26	1936-07-14	0	Details
US2013622A	Method of making turbine blades	Expired / Lapsed	1932-10-27	1935-09-03	0	Details