Granted Patent
Utility
US 6,505,492 · App. 09/832,995
Method and apparatus for forming deep-drawn articles
Inventor:
Robert M. Jroski
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Apr 11, 2001
Inventor
Robert M. Jroski
Assignee (at issue)
Bethlehem Steel Corporation
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.