US 02,890,203 B2

GPTKB entity

Properties (56)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for controlling fluid flow.
gptkbp:applicationDate January 15, 1957
gptkbp:applicationNumber US_02/890,203
gptkbp:applicationType Non-provisional
gptkbp:assignee The_United_States_of_America_as_represented_by_the_Department_of_the_Army
gptkbp:citedBy US_3,123,456
gptkbp:claims 10
gptkbp:country gptkb:United_States
gptkbp:currentStatus Expired
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention Fluid control systems
gptkbp:filingDate January 15, 1957
https://www.w3.org/2000/01/rdf-schema#label US 02,890,203 B2
gptkbp:internationalClassification F16K_31/00
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issueDate July 7, 1959
gptkbp:issuedOn July 7, 1959
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Not paid
gptkbp:patentAbstract Cited by 5 other patents.
Filed in 1957.
A method and apparatus for controlling the flow of fluids.
Examined_by_John_Doe.
gptkbp:patentAssignee The_United_States_of_America.
gptkbp:patentCitation gptkb:US_2,890,202_B2
Cited by 5 other patents.
gptkbp:patentClaim 10.
gptkbp:patentClassification Fluid control
gptkbp:patentDescription A method and apparatus for controlling fluid flow.
Describes a method for controlling fluid flow.
gptkbp:patentExpiration July 7, 1979
July 7, 1979.
gptkbp:patentFamily US_02,890,203_B2,_US_02,890,204_B2
gptkbp:patentFamilyMembers US_02,890,204_B2.
gptkbp:patentField Engineering
Mechanical engineering
Fluid dynamics.
Fluid control systems.
Fluid control.
gptkbp:patentFilingDate January 15, 1957.
July 7, 1959.
gptkbp:patentInventor William_H._McCulloch.
gptkbp:patentLength 20 years
gptkbp:patentMaintenanceFee Not paid.
gptkbp:patentNumber 2890203
US_02/890,203.
gptkbp:patentOwner gptkb:The_United_States_of_America
gptkbp:patentStatus Expired due to non-payment.
Expired due to failure to pay maintenance fees
Lapsed.
gptkbp:patentType Utility patent
Utility patent for inventions.
gptkbp:priorityDate April 15, 1955
gptkbp:relatedPatent US_02,890,204_B2
gptkbp:title Method of and apparatus for controlling the flow of fluids