US patent 2,222,222

GPTKB entity

Statements (13)
Predicate Object
gptkbp:instanceOf patent
gptkbp:applicationNumber US_2,222,222
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:citedBy US_patent_2,500,000
gptkbp:claims 1. An electrical circuit comprising...
gptkbp:description A circuit for controlling electrical devices.
gptkbp:fieldOfInvention Electrical Engineering
https://www.w3.org/2000/01/rdf-schema#label US patent 2,222,222
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issuedOn December 10, 1940
gptkbp:patentType Utility Patent
gptkbp:status Expired
gptkbp:title Electrical_Circuit