Granted Patent
Utility
US 5,647,136 · App. 08/500,336
Automatic ball bar for a coordinate measuring machine
Inventor:
Hans Jostlein
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Jul 10, 1995
Inventor
Hans Jostlein
Assignee (at issue)
Universities Research Association, Inc.
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.