Granted Patent
Utility
US 6,647,754 · App. 09/918,747
Variable width roll forming apparatus
Inventors:
Ernest R. Bodnar, Joseph A. Ruckauf, Gregory C. Nichols
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Jul 31, 2001
Inventors
Ernest R. Bodnar
Joseph A. Ruckauf
Gregory C. Nichols
Assignee (at issue)
Formtek, 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.