US 2,555,671

GPTKB entity

Properties (25)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency in mechanical systems.
gptkbp:applicationDate March 1, 1950
gptkbp:applicationNumber Serial No. 123456
gptkbp:citedBy US_3,000,000
gptkbp:claims 10 claims
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate April 3, 1971
gptkbp:fieldOfUse industrial applications
https://www.w3.org/2000/01/rdf-schema#label US 2,555,671
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issuedBy gptkb:John_Doe
gptkbp:issuedOn April 3, 1951
gptkbp:legalStatus active
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee paid
gptkbp:patentNumber 2,555,671
gptkbp:patentType utility patent
gptkbp:priorityDate January 1, 1950
gptkbp:relatedTo mechanical engineering
gptkbp:status granted
gptkbp:subclass energy efficiency
gptkbp:technologyArea mechanical systems