US 2,555,691 A

GPTKB entity

Statements (17)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A circuit arrangement for controlling electrical devices.
gptkbp:applicationNumber Serial No. 622,123
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:citedBy US_3,000,000_A
gptkbp:claims 10 claims.
gptkbp:class H01H
gptkbp:fieldOfUse Electrical Engineering
gptkbp:filingDate October 18, 1945
https://www.w3.org/2000/01/rdf-schema#label US 2,555,691 A
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issuedOn April 3, 1951
gptkbp:patentType Utility Patent
gptkbp:priorityDate October 18, 1945
gptkbp:relatedTo gptkb:US_2,555,690_A
gptkbp:status Expired
gptkbp:title Electrical_Circuit