Granted Patent
Utility
US 4,880,422 · App. 07/215,418
Refastenable diaper sheet
Inventor:
Robert K. McBride
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Jul 5, 1988
Inventor
Robert K. McBride
Assignee (at issue)
Tredegar Industries, Inc.
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.