Granted Patent
Utility
US 4,578,072 · App. 06/559,597
Leak resistant diaper or incontinent garment
Inventor:
Eugene P. Lancaster
Patented Case
View Patent ↗
Granted: Mar 25, 1986
Filed: Dec 8, 1983
Inventor
Eugene P. Lancaster
Assignee (at issue)
Weyerhaeuser NR 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.