Granted Patent
Utility
US 5,370,338 · App. 07/951,358
Variable orifice centerflow dispenser
Inventor:
Richard P. Lewis
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Sep 25, 1992
Inventor
Richard P. Lewis
Assignee (at issue)
Scott Paper Limited
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.