Granted Patent
Utility
US 5,509,830 · App. 08/298,095
Marine propulsor cooling and lubricating system
Inventor:
Chester A. Garis, Jr.
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Aug 23, 1994
Inventor
Chester A. Garis, Jr.
Assignee (at issue)
Newport News Shipbuilding and Dry Dock Company
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.