Granted Patent
Utility
US 5,608,939 · App. 08/522,171
Motor and driver mount diaphragm burnisher
Inventors:
Steve Waldhauser, Richard F. Wulff
Patented Case
View Patent ↗
Granted: Mar 11, 1997
Filed: Aug 31, 1995
Inventors
Steve Waldhauser
Richard F. Wulff
Assignee (at issue)
Castex Incorporated
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.