|
gptkbp:instanceOf
|
Patent
|
|
gptkbp:abstract
|
A method and apparatus for controlling fluid flow.
|
|
gptkbp:applicationDate
|
April 15, 1937
|
|
gptkbp:applicationNumber
|
US_2,111,111
|
|
gptkbp:assignee
|
gptkb:The_United_States_of_America
|
|
gptkbp:citedBy
|
gptkb:US_Patent_2,111,112
|
|
gptkbp:claims
|
5
|
|
gptkbp:classification
|
F15B 1/00
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:drawings
|
Yes
|
|
gptkbp:examiner
|
gptkb:John_Doe
|
|
gptkbp:fieldOfInvention
|
Fluid control
|
|
gptkbp:filedIn
|
gptkb:William_H._McCulloch
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
US Patent 2,111,111
|
|
gptkbp:inventiveStep
|
Yes
|
|
gptkbp:inventor
|
gptkb:William_H._McCulloch
|
|
gptkbp:issuedOn
|
March 29, 1938
|
|
gptkbp:legalStatus
|
Active
|
|
gptkbp:maintenanceFee
|
Required
|
|
gptkbp:novelty
|
Yes
|
|
gptkbp:patentCitation
|
gptkb:US_Patent_2,111,110
|
|
gptkbp:patentClassification
|
Fluid Control
Fluid_Mechanics
|
|
gptkbp:patentExpiration
|
March 29, 1958
|
|
gptkbp:patentFamily
|
US_Patent_Family
|
|
gptkbp:patentField
|
Engineering
|
|
gptkbp:patentLength
|
20 years
|
|
gptkbp:patentLink
|
https://patents.google.com/patent/US2111111A/en
|
|
gptkbp:patentNumber
|
2,111,111
|
|
gptkbp:patentOffice
|
gptkb:USPTO
|
|
gptkbp:patentStatus
|
Expired due to non-payment of maintenance fees.
|
|
gptkbp:patentType
|
Utility Patent
Granted Patent
|
|
gptkbp:priorityDate
|
April 15, 1937
|
|
gptkbp:relatedTo
|
Fluid dynamics
|
|
gptkbp:status
|
Expired
|
|
gptkbp:technologyArea
|
Mechanical Engineering
|
|
gptkbp:title
|
Method of and apparatus for controlling the flow of fluids
|