Granted Patent
Utility
US 5,950,861 · App. 08/966,565
Press-on closure with peelable end panel
Inventors:
Donald J. Roth, Donald G. Sauer, Robert W. Fraser
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Nov 10, 1997
Inventors
Donald J. Roth
Donald G. Sauer
Robert W. Fraser
Assignee (at issue)
Polystar Packaging, Incorporated
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.