US 400,123,481 A

GPTKB entity

Properties (50)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber US_400123481
gptkbp:applicationPublication gptkb:US_400,123,481_A
gptkbp:applicationType Non-Provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_500,123,456_A
gptkbp:claims 10
gptkbp:class Mechanics
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-01-11
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filingCountry gptkb:USA
gptkbp:filingDate 1975-06-15
gptkbp:grantDate 1977-01-11
https://www.w3.org/2000/01/rdf-schema#label US 400,123,481 A
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn 1977-01-11
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Paid
gptkbp:patentCitation gptkb:US_400,123,496_A
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gptkb:US_400,123,483_A
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gptkb:US_400,123,482_A
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gptkb:US_400,123,480_A
gptkbp:patentFamily US_400,123,481_A_Family
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1975-06-15
gptkbp:relatedTo US_300,123,456_A
gptkbp:status Expired
gptkbp:subclass Energy Efficiency
gptkbp:title Method for improving efficiency