Statements (12)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:assignee |
gptkb:Thomas_A._Edison
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1897-10-05
|
| gptkbp:fieldOfInvention |
Electric lighting
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 591,234
|
| gptkbp:inventedBy |
gptkb:Thomas_A._Edison
|
| gptkbp:patent |
591,234
|
| gptkbp:status |
Expired
|
| gptkbp:title |
Filament for Electric Lamps
|
| gptkbp:bfsParent |
gptkb:US_Patent_3991325
|
| gptkbp:bfsLayer |
7
|