Granted Patent
Utility
US 6,443,613 · App. 09/456,444
Method for transporting and delivering substances
Inventor:
Robert M. Rumph
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Dec 8, 1999
Inventor
Robert M. Rumph
Assignee (at issue)
The Maitland Company, 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.