US 520000000 B2

GPTKB entity

Properties (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 07/007,123
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_530000000_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a new type of energy-efficient mechanism.
gptkbp:drawings 5
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2013-04-06
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1991-05-15
gptkbp:firstClaim A mechanism comprising...
https://www.w3.org/2000/01/rdf-schema#label US 520000000 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1993-04-06
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_520000000_B2,_US_530000000_B2
gptkbp:patentType utility
gptkbp:priorityDate 1990-05-15
gptkbp:relatedTo gptkb:US_510000000_B2
gptkbp:status active
gptkbp:subclass energy conversion