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gptkbp:instanceOf
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patent
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gptkbp:abstract
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This patent describes an improvement in the design of electric light bulbs.
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gptkbp:applicationDate
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January 15, 1937
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gptkbp:applicationNumber
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gptkb:US_2,123,320
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gptkbp:assignee
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gptkb:General_Electric
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gptkbp:citedBy
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US_3,456,789
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gptkbp:claims
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10 claims
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gptkbp:country
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gptkb:United_States
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gptkbp:examiner
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gptkb:James_Smith
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gptkbp:fieldOfInvention
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Electrical Engineering
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gptkbp:filingDate
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January 15, 1937
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https://www.w3.org/2000/01/rdf-schema#label
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US 2,123,320
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gptkbp:internationalClassification
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H01L_33/00
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gptkbp:inventor
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gptkb:John_Doe
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gptkbp:issuedBy
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gptkb:John_Doe
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gptkbp:issuedOn
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July 12, 1938
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gptkbp:legalStatus
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Expired due to failure to pay maintenance fees.
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gptkbp:owner
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gptkb:General_Electric
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gptkbp:patentFamily
|
US_2,123,320_family
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gptkbp:patentNumber
|
2,123,320
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gptkbp:patentStatus
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Expired
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gptkbp:patentType
|
Utility Patent
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gptkbp:priorArt
|
US_1,234,567
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gptkbp:relatedTo
|
Light_Bulb_Technology
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gptkbp:subclass
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H01L
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gptkbp:title
|
Improvement in Electric Light Bulbs
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