Granted Patent
Utility
US 6,605,156 · App. 10/031,604
Robotic floor cleaning device
Inventors:
Alan Gerard Clark, David Lindsey Bisset, Michael David Aldred
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Jan 23, 2002
Inventors
Alan Gerard Clark
David Lindsey Bisset
Michael David Aldred
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.