Granted Patent
Utility
US 5,601,414 · App. 08/533,302
Interstage liquid/gas phase detector
Inventor:
John R. DiRe
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Sep 25, 1995
Inventor
John R. DiRe
Assignee (at issue)
IMO Industries Inc.
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.