Statements (15)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:US_patent
|
| gptkbp:application |
US223898
|
| gptkbp:assignee |
gptkb:Thomas_Edison
|
| gptkbp:country |
gptkb:United_States
|
| gptkbp:date |
1880-01-27
|
| gptkbp:describes |
An improvement in electric lamps, specifically the incandescent lamp.
|
| gptkbp:fieldOfInvention |
electric lighting
|
| gptkbp:filingDate |
1879-11-04
|
| gptkbp:inventedBy |
gptkb:Thomas_Edison
|
| gptkbp:patent |
223898
|
| gptkbp:status |
expired
|
| gptkbp:title |
gptkb:lighthouse
|
| gptkbp:bfsParent |
gptkb:A_New_System_of_Artificial_Illumination
|
| gptkbp:bfsLayer |
7
|
| http://www.w3.org/2000/01/rdf-schema#label |
US223898A
|