US 450,123,845 B2

GPTKB entity

Properties (63)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/307,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_500,123,456_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2005-02-26
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1982-05-12
https://www.w3.org/2000/01/rdf-schema#label US 450,123,845 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1985-02-26
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation gptkb:US_450,123,848_B2
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US 450,123,871 B2
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gptkbp:patentFamily US_450,123,845
gptkbp:patentType utility
gptkbp:priorityDate 1981-05-12
gptkbp:relatedTo gptkb:US_450,123,844_B2
gptkbp:status active
gptkbp:subclass energy conversion