Granted Patent
Utility
US 5,606,992 · App. 08/244,000
Pulse width modulated solenoid
Inventors:
Bradley C. Erickson, Garrett R. Holmes
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: May 18, 1994
Inventors
Bradley C. Erickson
Garrett R. Holmes
Assignee (at issue)
COLTEC INDUSTRIES, 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.