Granted Patent
Utility
US 6,247,232 · App. 09/266,206
Method of manufacturing a welded heat exchanger with grommet construction
Inventors:
Marco Lambert, Joseph S JuGer
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Mar 10, 1999
Inventors
Marco Lambert
Joseph S JuGer
Assignee (at issue)
Transpro, 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.