Granted Patent
Utility
US 6,333,694 · App. 09/824,296
Personal emergency response system
Inventors:
Douglas Pierce, Jeffrey S. Prough
Patented Case
View Patent ↗
Granted: Dec 25, 2001
Filed: Apr 2, 2001
Inventors
Douglas Pierce
Jeffrey S. Prough
Assignee (at issue)
Advanced Marketing Systems, LLC
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.