Dupro AG
Records under this name other than patents Dupro AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D457,696 | Vacuum cleaning tool Term ended Term ended May 21, 2016 · From the USPTO record | Term ended | Term ended May 21, 2016 | From the USPTO record |
| US 6,615,445 | Vacuum cleaning tool with direct flow turbine Lapsed on the fee record Ended Sep 9, 2015 · From the USPTO record | Lapsed on the fee record | Ended Sep 9, 2015 | From the USPTO record |
| US 7,941,893 | Vacuum cleaning tool and method for its operation Lapsed on the fee record Ended May 17, 2015 · From the USPTO record | Lapsed on the fee record | Ended May 17, 2015 | From the USPTO record |
| US D427,398 | Vacuum turbobrush Term ended Term ended Jun 27, 2014 · From the USPTO record | Term ended | Term ended Jun 27, 2014 | From the USPTO record |
| US D424,260 | Manual turbobrush Term ended Term ended May 2, 2014 · From the USPTO record | Term ended | Term ended May 2, 2014 | From the USPTO record |
| US 6,151,752 | Vacuum cleaner head Lapsed on the fee record Ended Nov 28, 2012 · From the USPTO record | Lapsed on the fee record | Ended Nov 28, 2012 | From the USPTO record |
| US 6,813,809 | Vacuum cleaning tool with rotating brush roller Lapsed on the fee record Ended Nov 9, 2012 · From the USPTO record | Lapsed on the fee record | Ended Nov 9, 2012 | From the USPTO record |
| US 7,316,050 | Vacuum cleaning tool having an exchangeable attachment Lapsed on the fee record Ended Jan 8, 2012 · From the USPTO record | Lapsed on the fee record | Ended Jan 8, 2012 | From the USPTO record |
| US 7,246,408 | Cleaning tool with rotatably driven working tool Lapsed on the fee record Ended Jul 24, 2011 · From the USPTO record | Lapsed on the fee record | Ended Jul 24, 2011 | From the USPTO record |
| US 7,246,410 | Vacuum cleaning tool having an air turbine with stabilizing air stream Lapsed on the fee record Ended Jul 24, 2011 · From the USPTO record | Lapsed on the fee record | Ended Jul 24, 2011 | From the USPTO record |