US 5,000,021 A

URI: https://gptkb.org/entity/US_5%2C000%2C021_A
GPTKB entity
Statements (30)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 07/407,123
gptkbp:applicationType Non-Provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_5,123,456_A
gptkbp:claims 10
gptkbp:class Mechanical_Systems
gptkbp:documentType Patent Document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate March 19, 2008
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filingDate April 15, 1990
gptkbp:firstClaim A method for improving efficiency in mechanical systems comprising...
https://www.w3.org/2000/01/rdf-schema#label US 5,000,021 A
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn March 19, 1991
gptkbp:language English
gptkbp:legalStatus Active
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee Paid
gptkbp:patentNumber 5,000,021
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType Utility Patent
gptkbp:priorityDate September 15, 1989
gptkbp:relatedPatent US_4,999,999_A
gptkbp:status granted
gptkbp:subclass Efficiency Improvement
gptkbp:title Method for improving efficiency