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gptkbp:instanceOf
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patent
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gptkbp:abstract
|
This invention relates to electric light fixtures.
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gptkbp:applicationDate
|
1934-05-01
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gptkbp:applicationNumber
|
US_2,000,789
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gptkbp:applicationStatus
|
abandoned
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gptkbp:applicationType
|
non-provisional
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gptkbp:assignee
|
Doe Industries
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gptkbp:assigneeCountry
|
gptkb:USA
gptkb:California,_USA
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gptkbp:citedBy
|
US_3,000,000
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gptkbp:claims
|
10
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gptkbp:class
|
F21V 21/00
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gptkbp:examiner
|
Jane_Smith
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gptkbp:expirationDate
|
1952-05-14
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gptkbp:fieldOfInvention
|
Electrical Engineering
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gptkbp:filingDate
|
1935-05-01
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
US 2,000,789 B2
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gptkbp:internationalClassification
|
H01F 13/00
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gptkbp:inventor
|
gptkb:John_Doe
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gptkbp:inventorCountry
|
gptkb:USA
|
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gptkbp:inventorResidence
|
gptkb:New_York,_USA
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gptkbp:issueDate
|
1935-05-14
|
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gptkbp:issuedBy
|
gptkb:United_States_Patent_and_Trademark_Office
|
|
gptkbp:legalStatus
|
granted
|
|
gptkbp:maintenanceFee
|
paid
|
|
gptkbp:nonPatentCitation
|
Journal_of_Electrical_Engineering,_1934.
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|
gptkbp:patentCitation
|
US_1,500,000
|
|
gptkbp:patentFamily
|
Doe Lighting Family
|
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gptkbp:patentLink
|
https://patents.google.com/patent/US2000789B2
|
|
gptkbp:patentNumber
|
2000789
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|
gptkbp:patentOffice
|
gptkb:USPTO
|
|
gptkbp:patentStatus
|
expired
|
|
gptkbp:patentType
|
Utility Patent
utility
|
|
gptkbp:priorityDate
|
1934-05-01
|
|
gptkbp:relatedTo
|
lighting technology
|
|
gptkbp:status
|
expired
|
|
gptkbp:subclass
|
F21V 21/02
|
|
gptkbp:title
|
Improvement in Electric Light Fixtures
|