US 2,777,776 B1

GPTKB entity

Properties (11)
Predicate Object
gptkbp:instanceOf patent
gptkbp:applicationNumber Application No. 505,123
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:fieldOfInvention Fluid control systems
https://www.w3.org/2000/01/rdf-schema#label US 2,777,776 B1
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issuedOn January 15, 1957
gptkbp:patentType Utility patent
gptkbp:priorityDate April 15, 1954
gptkbp:status Expired
gptkbp:title Method of and apparatus for controlling the flow of fluids