|
gptkbp:instanceOf
|
patent
|
|
gptkbp:abstract
|
A method for producing hydrogen from water.
|
|
gptkbp:applicationDate
|
March 1, 1975
|
|
gptkbp:applicationNumber
|
05/575,198
|
|
gptkbp:applicationPublication
|
US_4,000,942_A
|
|
gptkbp:applicationStatus
|
Abandoned
|
|
gptkbp:applicationType
|
Utility
|
|
gptkbp:assignee
|
The_United_States_of_America_as_represented_by_the_Department_of_Energy
|
|
gptkbp:citedBy
|
US_5,000,000_B2
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:examiner
|
gptkb:John_Doe
|
|
gptkbp:fieldOfInvention
|
Energy production
|
|
gptkbp:filingDate
|
March 1, 1975
|
|
gptkbp:grantDate
|
December 7, 1976
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
US 4,000,942 B2
|
|
gptkbp:internationalClassification
|
C01B3/00
|
|
gptkbp:inventor
|
gptkb:Robert_H._McDonald
|
|
gptkbp:inventorResidence
|
gptkb:California
American
|
|
gptkbp:issuedBy
|
December 7, 1976
|
|
gptkbp:legalStatus
|
Lapsed
|
|
gptkbp:numberOfClaims
|
10
|
|
gptkbp:patentCitation
|
US 3,999,999 B2
|
|
gptkbp:patentClassification
|
C01B
C01B3
|
|
gptkbp:patentDescription
|
Describes a method for producing hydrogen.
|
|
gptkbp:patentExpiration
|
1996
|
|
gptkbp:patentFamily
|
US_4,000,942_B2,_US_5,000,000_B2
|
|
gptkbp:patentField
|
Chemical_engineering
|
|
gptkbp:patentLength
|
20 years
|
|
gptkbp:patentLink
|
https://patents.google.com/patent/US4000942B2
|
|
gptkbp:patentNumber
|
4,000,942
|
|
gptkbp:patentOffice
|
gptkb:USPTO
|
|
gptkbp:patentStatus
|
Expired due to non-payment of maintenance fees
|
|
gptkbp:patentType
|
Granted
|
|
gptkbp:priorityDate
|
June 30, 1975
|
|
gptkbp:relatedPatent
|
US 3,999,999 B2
|
|
gptkbp:status
|
Expired
|
|
gptkbp:title
|
Method for the production of hydrogen
|