Granted Patent
Utility
US 4,506,533 · App. 06/572,056
Method of forming seamless drawn and ironed containers of aluminum stock
Inventors:
William Hessel, Wayne D. Niemeyer, Surya K. Misra, Richard A. Openchowski
Patented Case
View Patent ↗
Granted: Mar 26, 1985
Filed: Jan 19, 1984
Inventors
William Hessel
Wayne D. Niemeyer
Surya K. Misra
Richard A. Openchowski
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.