US 440,987,698 B2

GPTKB entity

Properties (25)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/397,123
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,123,456
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a mechanism for...
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2003-10-11
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1982-06-30
https://www.w3.org/2000/01/rdf-schema#label US 440,987,698 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1983-10-11
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_440,987,698_B2,_EP_1234567,_JP_12345678
gptkbp:patentType utility
gptkbp:priorityDate 1981-06-30
gptkbp:relatedTo gptkb:US_440,987,697_B2
gptkbp:status active
gptkbp:subclass energy conversion