Granted Patent
Utility
US 6,453,687 · App. 09/755,194
Refrigeration monitor unit
Inventors:
John Sharood, D. Mitchell Carr
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Jan 8, 2001
Inventors
John Sharood
D. Mitchell Carr
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.