US 4,031,000 B2

GPTKB entity

Properties (58)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber US_05/748,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:XYZ_Corporation
gptkbp:assigneeCountry gptkb:New_York
gptkbp:citedBy US_5,123,456
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-06-21
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1976-12-30
https://www.w3.org/2000/01/rdf-schema#label US 4,031,000 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1977-06-21
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation gptkb:US_4,000,012
gptkb:US_4,000,011
gptkb:US_4,000,013
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gptkbp:patentFamily US_4,031,000_B2,_US_4,000,000_B2
gptkbp:patentType utility
gptkbp:priorityDate 1976-12-30
gptkbp:relatedTo US_4,000,000_B2
gptkbp:status active
gptkbp:subclass energy conversion