US 2,555,665 B2

GPTKB entity

Properties (107)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber Serial No. 123456
gptkbp:applicationType non-provisional
gptkbp:assignee Example Corporation
gptkbp:assigneeCountry gptkb:New_York
gptkbp:citedBy US_3,000,000
gptkbp:claims 10
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1971-05-29
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1951-05-14
https://www.w3.org/2000/01/rdf-schema#label US 2,555,665 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1951-05-29
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation US 4,300,000
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gptkbp:patentFamily gptkb:US_2,555,665
gptkbp:patentNumber 2,555,665
gptkbp:patentType utility
gptkbp:priorityDate 1950-05-14
gptkbp:relatedTo gptkb:US_2,555,664_B2
gptkbp:status active
gptkbp:subclass energy conversion