US 2,555,607

GPTKB entity

Properties (26)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract An electrical circuit for controlling the operation of electrical devices.
gptkbp:applicationNumber Serial No. 622,123
gptkbp:applicationType Utility
gptkbp:assignee gptkb:General_Electric_Company
gptkbp:citedBy US_3,000,000
gptkbp:class H01H
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse Electrical Engineering
gptkbp:filingDate 1950-03-01
gptkbp:firstAwarded 2023-01-01
gptkbp:firstClaim A circuit for controlling electrical devices.
gptkbp:grantDate 1951-05-01
https://www.w3.org/2000/01/rdf-schema#label US 2,555,607
gptkbp:internationalClassification H01H 9/00
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issuedOn 1951-05-01
gptkbp:legalStatus Granted
gptkbp:maintenanceFee Paid
gptkbp:numberOfClaims 10
gptkbp:numberOfFigures 5
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1949-10-03
gptkbp:relatedTo gptkb:US_2,555,606
gptkbp:status Expired
gptkbp:title Electrical_Circuit