Granted Patent
Utility
US 6,540,236 · App. 10/172,694
Chuck
Inventors:
William H. Aultman, Robert A. Grogan
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jun 14, 2002
Inventors
William H. Aultman
Robert A. Grogan
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.