Granted Patent
Utility
US 5,915,339 · App. 08/496,734
Sector plate and seal arrangement for trisector air preheater
Inventors:
William C. Cox, Thomas G. Mergler
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Jun 29, 1995
Inventors
William C. Cox
Thomas G. Mergler
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.