Granted Patent
Utility
US 4,643,729 · App. 06/734,609
Elastic fasteners for a diaper
Inventor:
Pierre Laplanche
Patented Case
View Patent ↗
Granted: Feb 17, 1987
Filed: May 16, 1985
Inventor
Pierre Laplanche
Assignee (at issue)
Beghin-Say, S.A.
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.