Granted Patent
Utility
US 6,772,713 · App. 10/317,197
Method and apparatus for providing and utilizing outside air for boiler combustion
Inventors:
Neil Rolph, Shuqing Cui
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Dec 12, 2002
Inventors
Neil Rolph
Shuqing Cui
Assignee (at issue)
United Dominion 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.