US 4,890,057 B2

URI: https://gptkb.org/entity/US_4%2C890%2C057_B2
GPTKB entity
Properties (58)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 07/327,123
gptkbp:applicationPublicationNumber gptkb:US_4,890,057_A
gptkbp:applicationType Non-Provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkb:Los_Angeles
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy US_5,123,456
gptkbp:claims 20
gptkbp:class Mechanics
gptkbp:documentType Patent_Grant
gptkbp:examiner Jane_Smith
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filedIn April 1, 1989
https://www.w3.org/2000/01/rdf-schema#label US 4,890,057 B2
gptkbp:inventor gptkb:John_Doe
gptkb:New_York
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate January 2, 1990
gptkbp:issuedOn January 2, 1990
gptkbp:language English
gptkbp:legalStatus Granted
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee Paid
gptkbp:patentAbstract English.
This patent describes a method for improving efficiency in mechanical systems.
gptkbp:patentAssignee USA.
Los_Angeles.
Acme_Corporation.
gptkbp:patentCitation US_4,567,890
US_4,567,890.
gptkbp:patentClaim 20 claims.
gptkbp:patentClassification Class 123
Class 123.
gptkbp:patentExpiration January 2, 2010
January 2, 2010.
gptkbp:patentFamily US_4,890,057_B2,_US_5,123,456,_US_6,789,012
gptkbp:patentFamilyMembers US_4,890,057_B2,_US_5,123,456,_US_6,789,012.
gptkbp:patentField Mechanical_Engineering.
gptkbp:patentFilingDate March 15, 1988.
January 2, 1990.
April 1, 1989.
gptkbp:patentInventor John_Doe.
USA.
gptkbp:patentMaintenanceFee Paid.
gptkbp:patentNumber 4890057
gptkbp:patentOffice gptkb:USPTO
USPTO.
gptkbp:patentStatus Active.
Granted.
gptkbp:patentType Utility Patent
Utility.
gptkbp:priorityDate March 15, 1988
gptkbp:relatedTo US_4,567,890
gptkbp:status Active
gptkbp:subclass Energy Efficiency
gptkbp:title Method for improving efficiency