Granted Patent
Utility
US 5,322,301 · App. 07/939,457
Chucking tool with a wedging action for testing machines
Inventor:
Andreas Pohl
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Sep 2, 1992
Inventor
Andreas Pohl
Assignee (at issue)
Carl Schenck 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.