Granted Patent
Utility
US 6,584,866 · App. 10/235,739
Working tool, in particular rammer for soil compaction
Inventor:
Martin Greppmair
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Sep 5, 2002
Inventor
Martin Greppmair
Assignee (at issue)
Wacker Construction Equipment AG
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.