US patent 4,900,000

GPTKB entity

Properties (26)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing hydrogen from water using a specific process.
gptkbp:applicationNumber 07/307,198
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:examiner gptkb:John_Doe
gptkbp:expirationDate February 13, 2007
gptkbp:fieldOfUse energy production
gptkbp:filedIn gptkb:Robert_J._McCarthy
gptkbp:grantDate February 13, 1990
https://www.w3.org/2000/01/rdf-schema#label US patent 4,900,000
gptkbp:internationalClassification C01B3/00
gptkbp:inventor gptkb:Robert_J._McCarthy
gptkbp:issuedOn February 13, 1990
gptkbp:legalStatus expired
gptkbp:maintenanceFee paid
gptkbp:numberOfClaims 20
gptkbp:patentFamily gptkb:US_patent_family_4,900,000
gptkbp:patentOffice gptkb:United_States_Patent_and_Trademark_Office
gptkbp:priorityDate March 31, 1988
gptkbp:relatedTo hydrogen production technology
gptkbp:status granted
gptkbp:subclass 423/1.11
gptkbp:title Method for producing hydrogen from water