Granted Patent
Utility
US 5,315,858 · App. 07/979,279
Methods and apparatus for redrawing thin-walled container bodies
Inventors:
Dieter K. Naggert, James J. Tang, Robert J. Gruodis
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Nov 20, 1992
Inventors
Dieter K. Naggert
James J. Tang
Robert J. Gruodis
Assignee (at issue)
Crown, Cork & Seal Company, Inc.
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.