Granted Patent
Utility
US 6,789,276 · App. 10/322,920
Compressed air drain opening device
Inventors:
J. Leaphart, C. Mark Leaphart
Patented Case
View Patent ↗
Granted: Sep 14, 2004
Filed: Aug 22, 2002
Inventors
J. Leaphart
C. Mark Leaphart
Assignees (at issue)
J. Kirk Leaphart, Jr.
C. Mark Leaphart
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.