Granted Patent
Utility
US 5,456,006 · App. 08/299,971
Method for making a heat exchanger tube
Inventor:
Alan L. Study
Patented Case
View Patent ↗
Granted: Oct 10, 1995
Filed: Sep 2, 1994
Inventor
Alan L. Study
Assignee (at issue)
Ford Motor Company
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.