Granted Patent
Utility
US 6,820,685 · App. 10/786,142
Densified heat transfer tube bundle
Inventors:
Thomas P. Carter, David Andrew Aaron, Frank T. Morrison
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Feb 26, 2004
Inventors
Thomas P. Carter
David Andrew Aaron
Frank T. Morrison
Assignee (at issue)
Baltimore Aircoil Company, 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.