US 4,321,199

URI: https://gptkb.org/entity/US_4%2C321%2C199
GPTKB entity
Statements (30)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationDate 1980-05-15
gptkbp:applicationNumber 06/123,456
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,678,901
gptkbp:claims 10
gptkbp:class Mechanics
gptkbp:documentType Utility Patent
gptkbp:examiner gptkb:Robert_Brown
gptkbp:expirationDate 1999-03-30
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filedIn Jane_Smith
gptkbp:firstClaim A method for...
https://www.w3.org/2000/01/rdf-schema#label US 4,321,199
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn 1982-03-30
gptkbp:language English
gptkbp:legalStatus Active
gptkbp:location gptkb:United_States
gptkbp:patentClassification B60K_1/00
gptkbp:patentFamily US_4,321,199_family
gptkbp:patentNumber 4,321,199
gptkbp:patentType Utility
gptkbp:priorityDate 1980-05-15
gptkbp:relatedTo gptkb:US_4,321,198
gptkbp:status granted
gptkbp:subclass Energy Efficiency
gptkbp:title Method for improving efficiency