US 2,555,578 A

GPTKB entity

Properties (25)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for controlling the operation of a machine.
gptkbp:applicationNumber Serial No. 622,198
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:citedBy US_3,000,000_A
US_4,000,000_A
US_5,000,000_A
US_3,500,000_A
US_6,000,000_A
gptkbp:claims 20 claims.
gptkbp:classification H02P 1/00
gptkbp:country gptkb:United_States
gptkbp:fieldOfInvention Electrical engineering
gptkbp:filedIn gptkb:William_H._McCulloch
https://www.w3.org/2000/01/rdf-schema#label US 2,555,578 A
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issuedOn May 29, 1951
gptkbp:language English
gptkbp:numberOfFigures 5
gptkbp:pageCount 10
gptkbp:priorityDate April 12, 1949
gptkbp:relatedTo gptkb:US_2,555,577_A
gptkb:US_2,555,579_A
gptkbp:status Expired
gptkbp:title Method of and apparatus for controlling the operation of a machine