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gptkbp:instanceOf
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patent
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gptkbp:abstract
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A method and apparatus for controlling fluid flow.
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gptkbp:applicationNumber
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Serial No. 622,198
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gptkbp:applicationPublication
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US_2,555,711_A
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gptkbp:applicationType
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Non-provisional
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gptkbp:assignee
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The_United_States_of_America_as_represented_by_the_Department_of_the_Army
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gptkbp:citedBy
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US_3,000,000
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gptkbp:class
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Fluid control
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gptkbp:country
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gptkb:United_States
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gptkbp:examiner
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gptkb:John_Doe
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gptkbp:fieldOfInvention
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Fluid control systems
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gptkbp:filingDate
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February 12, 1948
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gptkbp:firstClaim
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A method for controlling fluid flow.
A device for controlling fluid flow.
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https://www.w3.org/2000/01/rdf-schema#label
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US 2,555,711 B2
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gptkbp:internationalClassification
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F16K_17/00
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gptkbp:inventor
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gptkb:William_H._McCulloch
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gptkbp:inventorCountry
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gptkb:USA
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gptkbp:issuedOn
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May 29, 1951
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gptkbp:legalStatus
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Granted
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gptkbp:maintenanceFee
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Paid
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gptkbp:numberOfClaims
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10
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gptkbp:patentCitation
|
Cited by 15 other patents.
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gptkbp:patentClassification
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Class 137
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gptkbp:patentExpiration
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May 29, 1971
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gptkbp:patentFamily
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US_2,555,711_B2_family
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gptkbp:patentLength
|
20 years
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gptkbp:patentNumber
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2,555,711
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gptkbp:patentOffice
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gptkb:USPTO
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gptkbp:patentStatus
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Expired due to non-payment of maintenance fees.
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gptkbp:patentType
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Utility patent
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gptkbp:priorityDate
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April 12, 1946
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gptkbp:relatedTo
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gptkb:US_2,555,710_B2
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gptkbp:status
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Active
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gptkbp:subclass
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Control valves
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gptkbp:title
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Method of and apparatus for controlling the flow of fluids
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