Granted Patent
Utility
US 4,595,425 · App. 06/717,545
Corrosion inhibiting quenchant compositions
Inventor:
Ronald Harding
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Mar 29, 1985
Inventor
Ronald Harding
Assignee (at issue)
Union Carbide 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.