Granted Patent
Utility
US 6,575,520 · App. 10/001,387
Cover system for truck box with tension control
Inventor:
Michael R. Spencer
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Oct 31, 2001
Inventor
Michael R. Spencer
Assignee (at issue)
Shur-Co, LLC
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.