Granted Patent
Utility
US 5,412,968 · App. 08/237,430
Method for leveling sheet metal
Inventor:
Willi Benz
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: May 3, 1994
Inventor
Willi Benz
Assignee (at issue)
SMS Schloemann-Siemag Aktiengesellschaft
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.