US 4,321,174

GPTKB entity

Statements (41)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving energy efficiency in systems.
gptkbp:applicationNumber 06/200,000
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:XYZ_Corporation
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class Energy conservation
gptkbp:country gptkb:United_States
gptkbp:documentType patent document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate April 6, 1999
gptkbp:fieldOfUse energy efficiency
gptkbp:filingDate April 1, 1980
gptkbp:fullText available online
https://www.w3.org/2000/01/rdf-schema#label US 4,321,174
gptkbp:internationalClassification F24S
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedBy April 6, 1982
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentAbstract A method for improving energy efficiency.
US_4,000,000
gptkbp:patentCitation US_3,000,000
gptkbp:patentClassification H01M
gptkbp:patentDescription Describes a method for enhancing energy efficiency.
gptkbp:patentExpiration 20 years from filing
gptkbp:patentFamily US_4,321,174_family
gptkbp:patentImage link to image
gptkbp:patentNumber 4,321,174
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentStatus active
assignment
gptkbp:patentType utility
gptkbp:priorityDate March 1, 1980
gptkbp:relatedPatent US_4,000,000
gptkbp:status active
gptkbp:subclass Methods of energy conservation
gptkbp:title Method for improving efficiency