Granted Patent
Utility
US 6,650,111 · App. 09/908,082
Pulsed excited proximity sensor
Inventor:
Timothy A. Christensen
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Jul 18, 2001
Inventor
Timothy A. Christensen
Assignee (at issue)
Eaton 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.