Granted Patent
Utility
US 4,580,310 · App. 06/755,223
Soot blower including revolving roller assembly with modular construction
Inventor:
Gerald F. Zalewski
Patented Case
View Patent ↗
Granted: Apr 8, 1986
Filed: Jul 15, 1986
Inventor
Gerald F. Zalewski
Assignee (at issue)
White Consolidated 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.