US 534,567,890 A

GPTKB entity

Statements (25)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 08/234,567
gptkbp:assignee gptkb:XYZ_Corporation
gptkbp:citedBy US_600,000,000_A
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2014-09-13
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1994-05-12
gptkbp:firstClaim A device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 534,567,890 A
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1994-09-13
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus active
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_534,567,890_A,_US_534,567,891_A
gptkbp:patentType utility
gptkbp:priorityDate 1993-05-12
gptkbp:relatedTo US_534,567,889_A
gptkbp:status granted
gptkbp:subclass energy efficiency