Granted Patent
Utility
US 6,776,225 · App. 10/170,600
Heat exchanger assembly
Inventors:
Frank Joseph Leitch, Kunal Ghosh
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Jun 13, 2002
Inventors
Frank Joseph Leitch
Kunal Ghosh
Assignee (at issue)
Delphi Technologies
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.