Granted Patent
Utility
US 4,309,849 · App. 06/069,306
Workpiece holder
Inventors:
Melvin Kowalski, E. N. Stefanelli
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Aug 24, 1979
Inventors
Melvin Kowalski
E. N. Stefanelli
Assignee (at issue)
Teledyne Industries, 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.