Granted Patent
Utility
US 5,337,590 · App. 08/173,336
Method and apparatus for bending tubes using split bend die
Inventors:
Eugene H. Schuchert, David M. Christensen, Samuel B. McGuire
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Dec 27, 1993
Inventors
Eugene H. Schuchert
David M. Christensen
Samuel B. McGuire
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.