Davidshofer; Donald
Patent Applications and Registrations
Patent applications and USPTO patent grants for Davidshofer; Donald.The latest application filed is for "vacuum cleaner floor seal".
- Davidshofer; Donald - Mount Holly NC
- Davidshofer; Donald - Charlotte NC US
- Davidshofer; Donald - Bloomington IL
| Patent | Date |
|---|---|
| Vacuum cleaner floor seal Grant 9,675,223 - Egan , et al. June 13, 2 | 2017-06-13 |
| Vacuum Cleaner Floor Seal App 20150135477 - Davidshofer; Donald ; et al. | 2015-05-21 |
| Vacuum cleaner floor seal Grant 8,904,595 - Davidshofer , et al. December 9, 2 | 2014-12-09 |
| Vacuum cleaner with movable wheel Grant 8,656,552 - Vines , et al. February 25, 2 | 2014-02-25 |
| Vacuum Cleaner Floor Seal App 20130145577 - Davidshofer; Donald ; et al. | 2013-06-13 |
| Vacuum cleaner with rotating handle Grant 8,448,295 - Vines , et al. May 28, 2 | 2013-05-28 |
| Vacuum Cleaner with Movable Wheel App 20110219569 - Vines; Brian ; et al. | 2011-09-15 |
| Vacuum Cleaner with Rotating Handle App 20110219581 - Vines; Brian ; et al. | 2011-09-15 |
| Vacuum cleaner having a variable speed brushroll App 20040134014 - Hawkins, Thomas W. ; et al. | 2004-07-15 |
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