Granted Patent
Utility
US 5,284,041 · App. 08/059,684
Method for bending tubes using split die
Inventors:
David M. Christensen, Eugene H. Schuchert, Richard N. Walker
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: May 10, 1993
Inventors
David M. Christensen
Eugene H. Schuchert
Richard N. Walker
Assignee (at issue)
Amana Refrigeration, Inc.
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.