Granted Patent
Utility
US 4,888,925 · App. 07/201,146
Fire-retardant fluid coupling assembly and method
Inventor:
Gerold J. Harbeke
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Jun 2, 1988
Inventor
Gerold J. Harbeke
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.