Granted Patent
Utility
US 5,656,997 · App. 08/491,371
Magnetic resonance alarm device
Inventors:
Al Hays, Lester Wooten
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Jun 16, 1995
Inventors
Al Hays
Lester Wooten
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.