Granted Patent
Utility
US 4,384,836 · App. 06/154,309
Apparatus for the continuous formation of biaxially oriented thermoplastic materials and forming articles therefrom by intermittent formings means interfaced therewith
Inventor:
Thomas W. Winstead
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: May 29, 1980
Inventor
Thomas W. Winstead
Assignee (at issue)
Maryland Cup Corporation
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.