US 440,456,789 B2

GPTKB entity

Statements (25)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/300,123
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_500,123,456_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a mechanism for...
gptkbp:examiner Jane_Smith
gptkbp:expirationDate September 20, 2003
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate September 15, 1981
https://www.w3.org/2000/01/rdf-schema#label US 440,456,789 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate September 20, 1983
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_440,456,789
gptkbp:patentType utility
gptkbp:priorityDate March 1, 1980
gptkbp:relatedTo US_440,456,788_B2
gptkbp:status active
gptkbp:subclass energy efficiency