Granted Patent
Utility
US 6,753,766 · App. 09/799,664
Detecting device and method of using same
Inventor:
John W. Patchell
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Mar 7, 2001
Inventor
John W. Patchell
Assignee (at issue)
1138037 Ontario Ltd. (“Alirt”)
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.