US 2,567,889 B1

GPTKB entity

Statements (60)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber Serial No. 12345678
gptkbp:assignee Doe Industries
gptkbp:assigneeCountry gptkb:New_York
gptkbp:citedBy gptkb:US_3,456,789_B1
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1971-09-25
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filedIn gptkb:USPTO
gptkbp:filingDate 1951-01-12
https://www.w3.org/2000/01/rdf-schema#label US 2,567,889 B1
gptkbp:internationalClassification F16H 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1951-09-25
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:location gptkb:USA
gptkbp:maintenanceFee paid
gptkbp:patentCitation gptkb:US_2,567,890_B1
gptkb:US_2,567,891_B1
US 2,567,909 B1
US_2,567,888_B1
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gptkbp:patentFamily Doe Patent Family
gptkbp:patentType utility
gptkbp:priorityDate 1950-01-12
gptkbp:relatedTo US_2,567,888_B1
gptkbp:status active
gptkbp:subclass improvements in mechanisms