Granted Patent
Utility
US 5,501,405 · App. 08/270,453
Dispenser apparatus for spreading particulate material
Inventor:
James R. Doornek
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Jul 5, 1994
Inventor
James R. Doornek
Assignee (at issue)
Douglas Dynamics, L.L.C.
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.