Granted Patent
Utility
US 4,936,840 · App. 07/140,000
Method of reducing fastener irritation and waist droop in a disposable diaper
Inventor:
Deborah L. Proxmire
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: Dec 31, 1987
Inventor
Deborah L. Proxmire
Assignee (at issue)
Kimberly-Clark 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.