Granted Patent
Utility
US 5,117,669 · App. 07/701,124
Apparatus for bending hollow profile strips
Inventor:
Peter Lisec
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: May 16, 1991
Inventor
Peter Lisec
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.