Granted Patent
Utility
US 6,780,286 · App. 10/201,457
Adjustable activity drainage box
Inventors:
Roy Van Essen, Mark Landry, Richard Pitt
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Jul 22, 2002
Inventors
Roy Van Essen
Mark Landry
Richard Pitt
Assignee (at issue)
ASTENJOHNSON, 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.