Granted Patent
Utility
US 5,898,995 · App. 08/937,053
Method of manufacture of a primary heat exchanger jacketed by a secondary heat exchanger
Inventor:
Mahmoud Ghodbane
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Sep 24, 1997
Inventor
Mahmoud Ghodbane
Assignee (at issue)
General Motors LLC
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.