Granted Patent
Utility
US 6,494,640 · App. 09/834,776
Apparatus for protecting structural supports
Inventor:
Joseph Roller
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Apr 13, 2001
Inventor
Joseph Roller
Assignee (at issue)
Hero Products, 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.