Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
patent
|
| gptkbp:abstract |
A device for improving efficiency.
|
| gptkbp:applicationNumber |
US_2,200,190
|
| gptkbp:assignee |
Doe Industries
|
| gptkbp:citedBy |
US_3,000,000
|
| gptkbp:claims |
10
|
| gptkbp:class |
mechanical device
|
| gptkbp:examiner |
Jane_Smith
|
| gptkbp:fieldOfInvention |
mechanical engineering
|
| gptkbp:filingDate |
1940-05-01
|
| gptkbp:firstClaim |
A device comprising...
|
| https://www.w3.org/2000/01/rdf-schema#label |
US 2,200,190 B1
|
| gptkbp:inventor |
gptkb:John_Doe
|
| gptkbp:issueDate |
1940-05-14
|
| gptkbp:issuedBy |
gptkb:United_States_Patent_and_Trademark_Office
|
| gptkbp:maintenanceFee |
required
|
| gptkbp:patentLength |
20 years
|
| gptkbp:patentType |
utility
|
| gptkbp:priorityDate |
1939-05-01
|
| gptkbp:relatedTo |
gptkb:US_2,200,189_B1
|
| gptkbp:status |
active
|
| gptkbp:subclass |
energy efficiency
|