Granted Patent
Utility
US 5,992,906 · App. 08/797,450
Exchange unit for exchanging a machine part
Inventor:
Peter W. Stadelmann
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Feb 6, 1997
Inventor
Peter W. Stadelmann
Assignee (at issue)
Asea Brown Boveri, S.A.
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.