US 4,000,029 B2

URI: https://gptkb.org/entity/US_4%2C000%2C029_B2
GPTKB entity
Properties (31)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber 05/598,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkb:New_York
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1975-06-30
https://www.w3.org/2000/01/rdf-schema#label US 4,000,029 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1977-12-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:location gptkb:USA
gptkbp:maintenanceFee paid
gptkbp:patentAbstract This invention relates to...
gptkbp:patentCitation US_3,500,000
gptkbp:patentFamily US_4,000,029_B2,_US_4,000,030_B2
gptkbp:patentNumber 4,000,029
gptkbp:patentType utility
gptkbp:priorityDate 1975-06-30
gptkbp:relatedTo US_3,000,000
gptkbp:status active
gptkbp:subclass energy efficiency