Granted Patent
Utility
US 6,155,209 · App. 09/448,363
Air preheater sector plate design with centered sealing arrangements
Inventor:
Harlan E. Finnemore
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Nov 23, 1999
Inventor
Harlan E. Finnemore
Assignee (at issue)
ABB Air Preheater 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.