Granted Patent
Utility
US 4,326,664 · App. 06/159,971
Thermoplastic bags having stress relief feature at handle connection
Inventors:
Gordon L. Benoit, Franz Bustin, Jack J. Donaldson
Patented Case
View Patent ↗
Granted: Apr 27, 1982
Filed: Jun 13, 1980
Inventors
Gordon L. Benoit
Franz Bustin
Jack J. Donaldson
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.