US 250,123,457 A

URI: https://gptkb.org/entity/US_250%2C123%2C457_A
GPTKB entity
Properties (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber US_06/123,456
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_300,123,456_A
gptkbp:claims 10
gptkbp:class mechanical device
gptkbp:description This patent describes a new type of mechanical device.
gptkbp:drawings 5
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1998-09-01
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1980-05-15
gptkbp:firstClaim A mechanical device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 250,123,457 A
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1981-09-01
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus active
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_250,123,457_A,_US_250,123,456_A
gptkbp:patentType utility
gptkbp:priorityDate 1979-05-15
gptkbp:relatedTo gptkb:US_250,123,456_A
gptkbp:status granted
gptkbp:subclass energy efficiency