US 400,123,490 A

GPTKB entity

Properties (23)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 05/123,456
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_500,123,456_A
gptkbp:claims 10
gptkbp:class mechanical device
gptkbp:description This invention relates to...
gptkbp:examiner Jane_Smith
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1975-05-15
https://www.w3.org/2000/01/rdf-schema#label US 400,123,490 A
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1977-01-11
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus active
gptkbp:patentFamily US_400,123,490_A,_US_500,123,456_A
gptkbp:patentType utility
gptkbp:priorityDate 1974-05-15
gptkbp:relatedTo gptkb:US_300,123,789_A
gptkbp:status expired
gptkbp:subclass energy conversion