Granted Patent
Utility
US 5,454,418 · App. 08/278,166
Means for lifting heat transfer element baskets
Inventors:
Mark E. Brophy, Steven M. Gustin
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Jul 21, 1994
Inventors
Mark E. Brophy
Steven M. Gustin
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.