Granted Patent
Utility
US 5,111,878 · App. 07/724,033
U-flow heat exchanger tubing with improved fluid flow distribution
Inventor:
Prasad S. Kadle
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Jul 1, 1991
Inventor
Prasad S. Kadle
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.