US 2,890,159 B2

GPTKB entity

Statements (34)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for controlling fluid flow.
gptkbp:applicationNumber Serial No. 610,198
gptkbp:applicationPublication gptkb:US_2,890,159_A
gptkbp:applicationStatus Granted
gptkbp:applicationType Non-provisional
gptkbp:assignee The_United_States_of_America_as_represented_by_the_Department_of_the_Army
gptkbp:citedBy US_3,000,000
gptkbp:class Fluid control devices
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention Fluid control systems
gptkbp:filingDate 1956-09-25
https://www.w3.org/2000/01/rdf-schema#label US 2,890,159 B2
gptkbp:internationalClassification F16K_31/00
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn 1959-06-16
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Not paid
gptkbp:numberOfClaims 10
gptkbp:patentCitation Cited by 5
gptkbp:patentClassification Class 137
gptkbp:patentExpiration 1979-06-16
gptkbp:patentFamily US_2,890,159_B2_family
gptkbp:patentFilingDate gptkb:US_2,890,159_B2
gptkbp:patentLength 20 years
gptkbp:patentNumber 2,890,159
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType Utility patent
Granted on 1959-06-16
gptkbp:priorityDate 1956-09-25
gptkbp:relatedTo gptkb:US_2,890,158_B2
gptkbp:status Expired
gptkbp:title Method of and apparatus for controlling the flow of fluids