Granted Patent
Utility
US 6,571,180 · App. 08/840,200
Self-contained steam trap monitor
Inventors:
John M. Turner, Jan L. Nethers
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Apr 11, 1997
Inventors
John M. Turner
Jan L. Nethers
Assignee (at issue)
Keystone International
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.