US 4,000,160 B2

GPTKB entity

Properties (49)
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
gptkbp:assigneeCountry gptkb:United_States
gptkbp:citedBy 10
US_5,000,000
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:country gptkb:United_States
gptkbp:description This patent describes a novel mechanism.
gptkbp:drawings 5
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1975-06-30
https://www.w3.org/2000/01/rdf-schema#label US 4,000,160 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:language English
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:nonPatentCitation 2
gptkbp:patentAbstract A device for improving efficiency in energy conversion.
gptkbp:patentAssignee gptkb:Acme_Corporation
gptkbp:patentCitation US_3,500,000
gptkbp:patentClassification mechanical engineering
gptkbp:patentFamily US_4,000,160
gptkbp:patentField energy technology
gptkbp:patentFilingDate 1975-06-30
1977-12-28
gptkbp:patentInventor gptkb:John_Doe
20 years
gptkbp:patentNumber 4,000,160
gptkbp:patentOwner gptkb:Acme_Corporation
gptkbp:patentStatus active
granted
gptkbp:patentType utility
Utility patent for a mechanical device.
gptkbp:priorityDate 1975-06-30
gptkbp:relatedTo US_3,000,000
gptkbp:status active
gptkbp:subclass energy conversion
gptkbp:technologyDomain energy efficiency