Granted Patent
Utility
US 5,197,865 · App. 07/832,041
Integral electronically commutated drive system
Inventors:
Christophe J. P. Sevrain, Joseph J. Stupak, Jr., Kevin D. O'Hara, Kurt Liebezeit
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Feb 6, 1992
Inventors
Christophe J. P. Sevrain
Joseph J. Stupak, Jr.
Kevin D. O'Hara
Kurt Liebezeit
Assignee (at issue)
Micropump, 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.