Granted Patent
Utility
US 5,517,962 · App. 08/354,532
Variable timing ignition circuit including conditional ignition retarding
Inventor:
Philip Ling
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Dec 13, 1994
Inventor
Philip Ling
Assignee (at issue)
Outboard Marine 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.