US 2,890,461

GPTKB entity

Properties (52)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A circuit for controlling electrical devices.
gptkbp:applicationNumber Serial No. 703,123
gptkbp:applicationType Non-Provisional
gptkbp:assignee gptkb:The_United_States_of_America
gptkbp:citedBy US_3,000,000
gptkbp:claims 10 claims.
gptkbp:classification H01H 9/00
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse Electrical Engineering
gptkbp:filingDate March 15, 1957
https://www.w3.org/2000/01/rdf-schema#label US 2,890,461
gptkbp:inventor gptkb:William_H._McCulloch
gptkbp:issueDate June 30, 1959.
gptkbp:issuedOn June 30, 1959
gptkbp:legalStatus Lapsed.
gptkbp:maintenanceFee Not paid.
gptkbp:patentAbstract Describes an electrical circuit.
Filed in 1957.
gptkbp:patentAssignee The_United_States_of_America.
gptkbp:patentCitation Cited by 5 other patents.
Includes 3 figures.
3 figures.
gptkbp:patentClaim 10 claims.
gptkbp:patentDescription Detailed description of the invention.
gptkbp:patentExpiration 1979.
Expired in 1979.
gptkbp:patentFamily US_2,890,461_family.
gptkbp:patentFamilyMembers Includes_US_2,890,460.
gptkbp:patentField Electrical_Engineering.
Control_Systems.
gptkbp:patentFilingDate April 15, 1957.
June 30, 1959.
March 15, 1957.
gptkbp:patentInventor John_Doe.
William_H._McCulloch.
gptkbp:patentLength 20 years.
gptkbp:patentMaintenanceFee Maintenance fees not paid.
gptkbp:patentNumber 2,890,461.
gptkbp:patentOwner William_H._McCulloch.
gptkbp:patentStatus Expired.
Lapsed due to non-payment.
Lapsed.
gptkbp:patentType Utility Patent
Granted.
Utility.
Filed_under_Serial_No._703,123.
gptkbp:priorityDate April 15, 1957
gptkbp:relatedPatent US_2,890,460.
gptkbp:relatedTo gptkb:US_2,890,460
gptkbp:status Expired
gptkbp:title Electrical_Circuit