Granted Patent
Utility
US 5,300,247 · App. 07/939,056
Improved corrosion inhibitor system for an intermediate heat transfer medium
Inventors:
Dwight E. Emerich, Kathleen A. Fix
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Sep 2, 1992
Inventors
Dwight E. Emerich
Kathleen A. Fix
Assignee (at issue)
Ashchem IP
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.