Granted Patent
Utility
US 6,293,114 · App. 09/584,204
Refrigerant monitoring apparatus and method
Inventor:
Derek Y. Kamemoto
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: May 31, 2000
Inventor
Derek Y. Kamemoto
Assignee (at issue)
Red Dot 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.