Granted Patent
Utility
US 5,253,502 · App. 07/815,519
Apparatus and method for bending and forming sheet material
Inventor:
Joseph William Poletti, III
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Dec 24, 1991
Inventor
Joseph William Poletti, III
Assignee (at issue)
Alco Industries
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.