US Patent 4,700,000

GPTKB entity

Properties (43)
Predicate Object
gptkbp:instanceOf Patent
gptkbp:abstract A method for producing hydrogen from water using a specific chemical process.
gptkbp:applicationNumber 07/059,198
gptkbp:applicationPublication gptkb:US_Patent_Application_07/059,198
gptkbp:applicationType Utility
gptkbp:assignee The_United_States_of_America_as_represented_by_the_Department_of_Energy
gptkbp:citedBy gptkb:US_Patent_5,000,000
gptkbp:class 423/1.1
gptkbp:country gptkb:United_States
gptkbp:currentStatus Expired
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse Energy production
gptkbp:filingDate June 1, 1987
gptkbp:hasFieldOfUse Renewable energy
https://www.w3.org/2000/01/rdf-schema#label US Patent 4,700,000
gptkbp:internationalClassification C01B3/00
gptkbp:inventor gptkb:Robert_H._McDonald
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate October 20, 1987
gptkbp:issuedOn October 20, 1987
gptkbp:language English
gptkbp:legalStatus Lapsed
gptkbp:maintenanceFee Not paid
gptkbp:numberOfClaims 20
gptkbp:patentAbstract Filed in 1987.
gptkbp:patentCitation Cited by 10 other patents.
gptkbp:patentExpiration October 20, 2004
gptkbp:patentFamily US_Patent_4,700,000_family
gptkbp:patentLink https://patents.google.com/patent/US4700000A/en
gptkbp:patentNumber 4,700,000
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentStatus Active
gptkbp:patentType Granted
Utility patent
A patent for a new method or process.
gptkbp:priorityDate February 14, 1986
gptkbp:relatedPatent gptkb:US_Patent_4,500,000
gptkbp:relatedTo Hydrogen production technology
gptkbp:researchAreas Hydrogen energy
gptkbp:subclass 423/1.2
gptkbp:technologyDomain Chemical_engineering
gptkbp:title Method for producing hydrogen from water
gptkbp:USClassification 423/1.1