Granted Patent
Utility
US 4,816,104 · App. 07/053,258
Methods and systems for preparing flat-bottom thermoplastic sack
Inventor:
Gordon L. Benoit
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: May 22, 1987
Inventor
Gordon L. Benoit
Assignee (at issue)
Mobil Oil 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.