Granted Patent
Utility
US 4,935,021 · App. 07/263,260
Disposal diaper with center gathers
Inventors:
Gloria Huffman, Heinz A. Pieniak
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Oct 27, 1988
Inventors
Gloria Huffman
Heinz A. Pieniak
Assignee (at issue)
McNeil-PPC, 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.