Properties (11)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:applicationNumber |
gptkb:US_3,111,220
|
| gptkbp:assignee |
gptkb:The_United_States_of_America
|
| gptkbp:fieldOfInvention |
composite materials
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 3,111,220
|
| gptkbp:inventor |
gptkb:Robert_H._McDonald
|
| gptkbp:issuedOn |
1963-11-26
|
| gptkbp:patentType |
utility
|
| gptkbp:priorityDate |
1961-11-27
|
| gptkbp:status |
expired
|
| gptkbp:title |
Method of making a composite material
|