US 4,321,122 C2

GPTKB entity

Statements (40)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber US_06/200,000
gptkbp:applicationType Non-Provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class Mechanical_Systems
gptkbp:country gptkb:United_States
gptkbp:documentType Patent Document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate March 30, 1999
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filingDate February 15, 1980
https://www.w3.org/2000/01/rdf-schema#label US 4,321,122 C2
gptkbp:internationalClassification F03B_13/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn March 30, 1982
gptkbp:language English
gptkbp:legalStatus Granted
gptkbp:patentCitation US 4,300,000
US_4,500,000
US_4,200,000
US_4,600,000
US_4,700,000
US_4,800,000
US_4,900,000
US_4,000,000
US_4,100,000
US_4,400,000
gptkbp:patentFamily gptkb:US_4,321,122
gptkbp:patentNumber 4,321,122
gptkbp:patentType Utility Patent
gptkbp:priorityDate September 15, 1980
gptkbp:publicationDate March 30, 1982
gptkbp:relatedTo US_4,000,000
gptkbp:status Active
gptkbp:subclass Efficiency Improvement
gptkbp:title Method for improving efficiency