Granted Patent
Utility
US 4,360,945 · App. 06/281,089
Roller supporting means for long retracting soot blowers
Inventors:
Dean C. Ackerman, Charles W. Hammond
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Jul 7, 1981
Inventors
Dean C. Ackerman
Charles W. Hammond
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.