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gptkbp:instanceOf
|
patent
|
|
gptkbp:abstract
|
This invention relates to electric light fixtures.
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|
gptkbp:applicationNumber
|
US_1680000
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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
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gptkbp:citedBy
|
US_2000000_A
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|
gptkbp:claims
|
10
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|
gptkbp:class
|
F21V 21/00
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:documentType
|
patent document
|
|
gptkbp:examiner
|
gptkb:James_Smith
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|
gptkbp:fieldOfUse
|
electric lighting
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gptkbp:filingDate
|
1926-01-12
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|
https://www.w3.org/2000/01/rdf-schema#label
|
US 1680000 A
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|
gptkbp:inventor
|
gptkb:John_Doe
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gptkbp:inventorCountry
|
gptkb:USA
|
|
gptkbp:issuedBy
|
gptkb:United_States_Patent_and_Trademark_Office
|
|
gptkbp:language
|
English
|
|
gptkbp:legalStatus
|
granted
|
|
gptkbp:patentCitation
|
US_1500000_A
|
|
gptkbp:patentClassification
|
H01
|
|
gptkbp:patentExpiration
|
1955-01-12
|
|
gptkbp:patentFamily
|
Doe Lighting Family
|
|
gptkbp:patentField
|
electrical engineering
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|
gptkbp:patentNumber
|
1680000
|
|
gptkbp:patentType
|
utility patent
|
|
gptkbp:priorityDate
|
1925-01-12
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|
gptkbp:publicationDate
|
1928-08-14
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|
gptkbp:relatedTo
|
lighting technology
|
|
gptkbp:status
|
expired
|
|
gptkbp:subclass
|
F21V 21/02
|
|
gptkbp:title
|
Improvement in Electric Light Fixtures
|