Granted Patent
Utility
US 5,778,723 · App. 08/713,998
Method and apparatus for necking a metal container and resultant container
Inventor:
Hans H. Diekhoff
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Sep 18, 1996
Inventor
Hans H. Diekhoff
Assignee (at issue)
Aluminum Company of America
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.