Granted Patent
Utility
US 4,846,819 · App. 07/284,745
Female incontinence device having improved rim structure
Inventor:
Kathleen Welch
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Dec 9, 1988
Inventor
Kathleen Welch
Assignee (at issue)
Sherwood Medical 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.