Granted Patent
Utility
US 6,832,764 · App. 10/167,708
Locking chuck
Inventors:
Stephen W. Steadings, William C. Buck, Christopher B. Barton
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Jun 11, 2002
Inventors
Stephen W. Steadings
William C. Buck
Christopher B. Barton
Assignee (at issue)
Power Tool Holders Incorporated
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.