Granted Patent
Utility
US 6,413,039 · App. 09/585,163
Impeller for coolant pumps
Inventors:
R. David Morris, John Boyer, Curtis Ulm, George Tomlinson
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Jun 1, 2000
Inventors
R. David Morris
John Boyer
Curtis Ulm
George Tomlinson
Assignee (at issue)
Uis, Inc.
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.