Granted Patent
Utility
US 4,898,708 · App. 07/222,387
Method for shaping closed bottom of tubular container
Inventors:
George H. Holoubek, John J. Rhoades, George P. Whitaker
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Jul 21, 1988
Inventors
George H. Holoubek
John J. Rhoades
George P. Whitaker
Assignee (at issue)
Wheeling Stamping Company
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.