Düpro AG
Records under this name other than patents Düpro AG holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 6 of 6 · Back to Düpro AG
| 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 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 6,550,099 | Vacuum cleaning tool with exchangeable vacuum shoes Lapsed on the fee record Ended Apr 22, 2011 · From the USPTO record | Lapsed on the fee record | Ended Apr 22, 2011 | From the USPTO record |
| US 6,484,356 | Vacuum cleaning tool with pear-shaped turbine chamber Lapsed on the fee record Ended Nov 26, 2010 · From the USPTO record | Lapsed on the fee record | Ended Nov 26, 2010 | From the USPTO record |
| US 6,477,735 | Vacuum cleaning tool with an outlet ramp Lapsed on the fee record Ended Nov 12, 2010 · From the USPTO record | Lapsed on the fee record | Ended Nov 12, 2010 | From the USPTO record |