Method of forming a plastic closure with liner having a periphery spaced from the skirt of the closure and a sealing surface angled axially with respect to the base wall of the closure

Granted: Aug 15, 2000 Filed: Jun 23, 1999

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.