Granted Patent
Utility
US 5,476,459 · App. 07/874,231
Disposable urine and fecal waste containment product
Inventor:
Ching-Yun M. Yang
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Apr 24, 1992
Inventor
Ching-Yun M. Yang
Assignee (at issue)
Chicopee
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.