Granted Patent
Utility
US 4,464,157 · App. 06/569,925
Method of preparing a thermoplastic bag having reinforced handles
Inventors:
Gordon L. Benoit, Jack J. Donaldson, Paul D. Heilman
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Jan 11, 1984
Inventors
Gordon L. Benoit
Jack J. Donaldson
Paul D. Heilman
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.