Granted Patent
Utility
US 5,667,004 · App. 08/639,885
Molded plastic heat exchanger mounting channel
Inventor:
Karl Paul Kroetsch
Patented Case
View Patent ↗
Granted: Sep 16, 1997
Filed: Apr 29, 1996
Inventor
Karl Paul Kroetsch
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.