Granted Patent
Utility
US 5,619,771 · App. 08/514,260
Oscillating and reverse cleaning sootblower
Inventor:
Michael J. Minic
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: Aug 11, 1995
Inventor
Michael J. Minic
Assignee (at issue)
Effox, 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.