US 3,123,414 B2

URI: https://gptkb.org/entity/US_3%2C123%2C414_B2
GPTKB entity
Properties (36)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber US_2,123,456
gptkbp:applicationType non-provisional
gptkbp:assignee Example Corporation
gptkbp:citedBy gptkb:US_4,567,890_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:country gptkb:United_States
gptkbp:documentType patent document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1981-01-12
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1962-01-12
https://www.w3.org/2000/01/rdf-schema#label US 3,123,414 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1964-03-10
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:location gptkb:USA
gptkbp:maintenanceFee paid
gptkbp:patentAbstract This invention relates to...
gptkbp:patentCitation gptkb:US_2,987,654_B2
gptkbp:patentClassification A01B_1/00
gptkbp:patentFamily US_3,123,414_B2,_US_3,456,789_B2
gptkbp:patentNumber 3,123,414
gptkbp:patentType utility
gptkbp:priorityDate 1961-01-12
gptkbp:relatedTo gptkb:US_3,456,789_B2
gptkbp:status active
gptkbp:subclass energy efficiency
gptkbp:technology energy conversion