Granted Patent
Utility
US 5,863,228 · App. 08/639,436
Method and apparatus for propelling a marine vessel
Inventor:
David Tether
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Apr 29, 1996
Inventor
David Tether
Assignee (at issue)
Solomon Technologies, 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.