US 04,567,893 B2

GPTKB entity

Statements (68)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber US_06/740,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:New_York
gptkb:XYZ_Corporation
gptkbp:citedBy gptkb:US_05,678,901_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2006-01-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1985-05-30
https://www.w3.org/2000/01/rdf-schema#label US 04,567,893 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1986-01-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus active
gptkbp:maintenanceFee paid
gptkbp:patentCitation gptkb:US_04,567,904_B2
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US 04,567,909 B2
gptkbp:patentFamily US_04,567,893
gptkbp:patentType utility
gptkbp:priorityDate 1984-05-30
gptkbp:relatedTo gptkb:US_04,567,892_B2
gptkbp:status granted
gptkbp:subclass energy efficiency
gptkbp:technology energy conservation