Granted Patent
Utility
US 6,765,489 · App. 10/217,323
Accelerometer-based infant movement monitoring and alarm device
Inventor:
Charles H. Ketelhohn
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Aug 12, 2002
Inventor
Charles H. Ketelhohn
Assignee (at issue)
Milwaukee Electronics 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.