Granted Patent
Utility
US 5,713,411 · App. 08/764,533
Means for lifting heat transfer element baskets
Inventor:
Kurt M. Fierle
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Dec 12, 1996
Inventor
Kurt M. Fierle
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.