Granted Patent
Utility
US 4,389,212 · App. 06/326,726
Diaper with potentially elastic tape fastener
Inventor:
Ludwig Tritsch
Patented Case
View Patent ↗
Granted: Jun 21, 1983
Filed: Dec 2, 1981
Inventor
Ludwig Tritsch
Assignee (at issue)
Personal Products Company
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.