Granted Patent
Utility
US 4,636,209 · App. 06/754,804
Sanitary napkin with fluid transfer layer
Inventor:
Frederich O. Lassen
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Jul 12, 1985
Inventor
Frederich O. Lassen
Assignee (at issue)
Kimberly-Clark Inc.
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.