US 502,123,456 B2

URI: https://gptkb.org/entity/US_502%2C123%2C456_B2
GPTKB entity
Properties (28)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 07/123,456
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_503,123,457_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a new type of mechanical device.
gptkbp:drawings included
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2011-06-11
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1990-05-15
gptkbp:firstClaim A device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 502,123,456 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1991-06-11
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_502,123,456_B2,_US_502,123,457_B2
gptkbp:patentType utility
gptkbp:priorityDate 1989-05-15
gptkbp:relatedTo US_501,123,455_B2
gptkbp:status active
gptkbp:subclass energy efficiency