Granted Patent
Utility
US 6,044,857 · App. 08/799,709
Electronic controller for a modulating valve
Inventor:
Daniel K. Stege
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Feb 13, 1997
Inventor
Daniel K. Stege
Assignee (at issue)
Erie Manufacturing 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.