Granted Patent
Utility
US 6,812,657 · App. 10/221,880
Motor control for two motors
Inventor:
Giovanni Mario Raimondi
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Sep 17, 2002
Inventor
Giovanni Mario Raimondi
Assignee (at issue)
Dyson Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.