Granted Patent
Utility
US 6,577,921 · App. 09/723,047
Container tracking system
Inventor:
Robert Carson
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Nov 27, 2000
Inventor
Robert Carson
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.