Granted Patent
Utility
US 6,604,490 · App. 10/079,186
Low reservoir detection and variable dosing for a spray deterrent animal training system
Inventors:
Albert L. Lee, IV, William S. Groh
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Feb 20, 2002
Inventors
Albert L. Lee, IV
William S. Groh
Assignee (at issue)
Radio Systems Corporation
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.