Granted Patent
Utility
US 5,636,685 · App. 08/698,633
Plate and fin oil cooler with improved efficiency
Inventors:
Warren L. Gawve, Duane Victor Beales
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Aug 16, 1996
Inventors
Warren L. Gawve
Duane Victor Beales
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.