US 2,890,494 B2

URI: https://gptkb.org/entity/US_2%2C890%2C494_B2
GPTKB entity
Properties (31)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for controlling fluid flow.
gptkbp:applicationDate 1955-06-30
gptkbp:applicationNumber gptkb:US_2,890,494
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:citedBy US_3,000,000
gptkbp:class Fluid control systems
gptkbp:country gptkb:United_States
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention fluid control
gptkbp:firstClaim A method for controlling fluid flow.
US_3,500,000
gptkbp:grantDate 1959-06-30
https://www.w3.org/2000/01/rdf-schema#label US 2,890,494 B2
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:inventorResidence gptkb:USA
gptkbp:issuedOn 1959-06-30
gptkbp:legalStatus granted
gptkbp:numberOfClaims 10
gptkbp:patentExpiration 1979-06-30
gptkbp:patentFamily US_2,890,494_B2_family
gptkbp:patentLength 20 years
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility patent
gptkbp:priorityDate 1955-06-30
gptkbp:publicationNumber gptkb:US_2,890,494_B2
gptkbp:relatedApplication US_2,890,493_B2,_US_2,890,495_B2
gptkbp:relatedTo gptkb:US_2,890,493_B2
gptkbp:status active
gptkbp:title Method of and apparatus for controlling the flow of fluids