Granted Patent
Utility
US 5,129,848 · App. 07/718,628
Controllable variable depth mooring system and method
Inventors:
Charles O. Etheridge, Peter F. Poranski, Sr.
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Jun 21, 1991
Inventors
Charles O. Etheridge
Peter F. Poranski, Sr.
Assignee (at issue)
SOFEC, 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.