Granted Patent
Utility
US 4,993,369 · App. 07/526,065
Internal combustion engine
Inventors:
Paul W. Breckenfeld, George Broughton, Duane W. Forquer
Patented Case
View Patent ↗
Granted: Feb 19, 1991
Filed: May 18, 1990
Inventors
Paul W. Breckenfeld
George Broughton
Duane W. Forquer
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.