US 449,876,543 B2

GPTKB entity

Properties (76)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 07/123,456
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkb:New_York
gptkbp:citedBy US_450,000,001_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate February 12, 2005
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate March 15, 1982
https://www.w3.org/2000/01/rdf-schema#label US 449,876,543 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate February 12, 1985
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
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gptkbp:patentFamily US_449,876,543_B2,_US_449,876,542_B2
gptkbp:patentType utility
gptkbp:priorityDate March 15, 1981
gptkbp:relatedTo US_449,876,542_B2
gptkbp:status active
gptkbp:subclass energy conversion