US 2,678,902 B1

URI: https://gptkb.org/entity/US_2%2C678%2C902_B1
GPTKB entity
Statements (29)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber US_2,678,902
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_3,456,789_B2
gptkbp:claims 10
gptkbp:class mechanical device
gptkbp:description This patent describes a novel mechanism.
gptkbp:drawings 5
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1971-01-12
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1953-01-12
gptkbp:firstClaim A device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 2,678,902 B1
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1954-05-18
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:location gptkb:USA
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_2,678,902_B1,_US_2,678,903_B1
gptkbp:patentType utility
gptkbp:priorityDate 1952-01-12
gptkbp:relatedTo gptkb:US_2,678,901_B1
gptkbp:status active
gptkbp:subclass energy efficiency