Granted Patent
Utility
US 4,842,421 · App. 07/195,919
Thermoplastic draw tape bag with tacky closure surface
Inventors:
Edward M. Bullard, Fox J. Herrington
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: May 19, 1988
Inventors
Edward M. Bullard
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.