Granted Patent
Utility
US 6,679,691 · App. 10/282,633
Anti cavitation system for two-speed motors
Inventors:
Michael Barto, Mark Schuster, John B. Heckel, Marvin L. Bernstrom
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Oct 29, 2002
Inventors
Michael Barto
Mark Schuster
John B. Heckel
Marvin L. Bernstrom
Assignee (at issue)
Eaton Corporation
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.