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gptkbp:instanceOf
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patent
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gptkbp:abstract
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A method for improving efficiency in mechanical systems.
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gptkbp:applicationNumber
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US_05/123,456
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gptkbp:applicationType
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Non-Provisional
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gptkbp:assignee
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gptkb:Acme_Corporation
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gptkbp:citedBy
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US_5,678,910
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gptkbp:claims
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20
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gptkbp:class
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Mechanics
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gptkbp:examiner
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Jane_Smith
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gptkbp:fieldOfInvention
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Mechanical Engineering
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gptkbp:filingDate
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April 1, 1977
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gptkbp:firstClaim
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A method for...
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https://www.w3.org/2000/01/rdf-schema#label
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US 4,123,441
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gptkbp:internationalClassification
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F03G_6/00
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gptkbp:inventor
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gptkb:John_Doe
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gptkbp:inventorResidence
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gptkb:United_States
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gptkbp:issueDate
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October 31, 1978
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gptkbp:issuedBy
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October 31, 1978
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gptkbp:legalStatus
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Expired due to failure to pay maintenance fees.
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gptkbp:maintenanceFee
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Paid
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gptkbp:patentFamily
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US_4,123,441,_US_4,567,890
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gptkbp:patentLength
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20 years
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gptkbp:patentType
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Utility Patent
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gptkbp:priorityDate
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March 15, 1977
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gptkbp:relatedPatent
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US_4,567,890
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gptkbp:status
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Expired
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gptkbp:subclass
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Energy Conservation
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gptkbp:title
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Method for improving efficiency
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