Granted Patent
Utility
US 4,880,316 · App. 07/201,798
Multiple layer hand-grip reinforcement for thermoplastic draw tape handles for thermoplastic bags
Inventors:
Kirk E. Belmont, Edward M. Bullard, Daniel J. DiBiasi, Edward W. Forman, Jr., David E. McIntyre
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Jun 3, 1988
Inventors
Kirk E. Belmont
Edward M. Bullard
Daniel J. DiBiasi
Edward W. Forman, Jr.
David E. McIntyre
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.