Granted Patent
Utility
US 5,447,463 · App. 08/077,078
Apparatus for microfinishing
Inventor:
Heinz Schmitz
Patented Case
View Patent ↗
Granted: Sep 5, 1995
Filed: Jun 16, 1993
Inventor
Heinz Schmitz
Assignee (at issue)
Supfina Maschinenfabrik Hentzen GmbH & Co. KG
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.