Granted Patent
Utility
US 6,809,441 · App. 10/137,811
Cooling of electrical machines
Inventor:
Steven P. Randall
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: May 1, 2002
Inventor
Steven P. Randall
Assignee (at issue)
Switched Reluctance Drives 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.