Granted Patent
Utility
US 5,881,950 · App. 08/958,580
Rotary materials organizer
Inventor:
Annalee Koehn
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Oct 28, 1997
Inventor
Annalee Koehn
Assignee (at issue)
R.R. DONNELLEY & SONS 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.