US 4,123,415 B2

GPTKB entity

Properties (24)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber US_05/952,123
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,678,910
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1978-12-29
https://www.w3.org/2000/01/rdf-schema#label US 4,123,415 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1978-10-31
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_4,123,415_B2,_US_4,567,890,_US_5,678,910
gptkbp:patentLength 20 years
gptkbp:patentType utility
gptkbp:priorityDate 1977-12-29
gptkbp:relatedTo US_4,567,890
gptkbp:status active
gptkbp:subclass energy efficiency