Granted Patent
Utility
US 4,367,841 · App. 06/208,091
Thermoplastic carrying bag with binary polyolefin resin blend
Inventor:
Ranjit Mazumdar
Patented Case
View Patent ↗
Granted: Jan 11, 1983
Filed: Nov 18, 1980
Inventor
Ranjit Mazumdar
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.