Granted Patent
Utility
US 4,517,045 · App. 06/489,070
Apparatus for formation of packaging material
Inventor:
Donald E. Beckett
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Jun 13, 1983
Inventor
Donald E. Beckett
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.