Granted Patent
Utility
US 4,351,082 · App. 06/255,371
Oscillating soot blower mechanism
Inventors:
Dean C. Ackerman, Don W. Smith
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Apr 20, 1981
Inventors
Dean C. Ackerman
Don W. Smith
Assignee (at issue)
The Babcock & Wilcox Company
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.