Granted Patent
Utility
US 4,561,109 · App. 06/623,623
Plastic bags with releasable closure which resists opening from inside
Inventor:
Fox J. Herrington
Patented Case
View Patent ↗
Granted: Dec 24, 1985
Filed: Jun 22, 1984
Inventor
Fox J. Herrington
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.