Granted Patent
Utility
US 6,505,470 · App. 10/085,315
System for detecting overflow of a tank
Inventors:
Thomas K. Drube, Claus Emmer, Brian Bostrom
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Feb 28, 2002
Inventors
Thomas K. Drube
Claus Emmer
Brian Bostrom
Assignee (at issue)
Chart 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.