Granted Patent
Utility
US 4,836,398 · App. 07/150,228
Inwardly reformable endwall for a container
Inventors:
Charles J. Leftault, Jr., W. Coy Willis
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jan 29, 1988
Inventors
Charles J. Leftault, Jr.
W. Coy Willis
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.