Granted Patent
Utility
US 4,346,834 · App. 06/208,092
Thermoplastic carrying bag with polyolefin resin blend
Inventor:
Ranjit Mazumdar
Patented Case
View Patent ↗
Granted: Aug 31, 1982
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.