US 4,321,128 C2

URI: https://gptkb.org/entity/US_4%2C321%2C128_C2
GPTKB entity
Statements (33)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 06/123,456
gptkbp:applicationPublicationNumber US_1979/012345
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,678,901
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:firstClaim A method for...
gptkbp:grantDate 1982-03-30
https://www.w3.org/2000/01/rdf-schema#label US 4,321,128 C2
gptkbp:internationalClassification F16H 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueFeePaid $1,500
gptkbp:legalStatus Active
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee $1,000
gptkbp:patentCitation gptkb:US_4,321,126_C2
gptkbp:patentExpiration 20 years from filing date
gptkbp:patentFamily US_4,321,128_C2,_US_4,321,127_C2
gptkbp:patentNumber 4,321,128
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1978-02-15
gptkbp:relatedPatent gptkb:US_4,321,127_C2
gptkbp:status Granted
gptkbp:title Method for improving efficiency