Granted Patent
Utility
US 6,752,449 · App. 10/331,711
Roll up tonneau cover system
Inventor:
Donald G. Wheatley
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Dec 30, 2002
Inventor
Donald G. Wheatley
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.