Granted Patent
Utility
US 6,371,606 · App. 09/907,297
Ink retaining foams
Inventor:
Sharon A. Free
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Jul 17, 2001
Inventor
Sharon A. Free
Assignee (at issue)
FOAMEX L.P.
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.