Statements (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:abstract |
This patent describes an improved design for electric light bulbs.
|
| gptkbp:applicationNumber |
gptkb:US_2,123,492_A
|
| gptkbp:assignee |
Doe Industries
|
| gptkbp:citedBy |
US_3,456,789
|
| gptkbp:fieldOfUse |
lighting
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 2,123,492
|
| gptkbp:issuedBy |
gptkb:John_Doe
|
| gptkbp:issuedOn |
July 12, 1938
|
| gptkbp:status |
expired
|
| gptkbp:title |
Improvement in Electric Light Bulbs
|