US 4,321,136 C2

URI: https://gptkb.org/entity/US_4%2C321%2C136_C2
GPTKB entity
Statements (35)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 06/123,456
gptkbp:applicationPublication 1979-08-30
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,678,910
gptkbp:claims 10
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2002-03-30
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:fieldOfUse Industrial Applications
gptkbp:filingDate 1979-02-15
gptkbp:grantDate 1982-03-30
https://www.w3.org/2000/01/rdf-schema#label US 4,321,136 C2
gptkbp:internationalClassification F16H 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueFeePaid Yes
gptkbp:legalStatus Active
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee Paid
gptkbp:patentAbstract gptkb:Robert_Brown
gptkbp:patentCitation US_3,456,789
gptkbp:patentClassification Class 123
gptkbp:patentExpiration 20 years from filing date.
gptkbp:patentFamily US_4,321,136_C2,_US_5,678,910
gptkbp:patentNumber 4,321,136
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentStatus In_Force
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1978-02-15
gptkbp:relatedPatent US_4,567,890
gptkbp:status Granted
gptkbp:title Method for improving efficiency