Granted Patent
Utility
US 4,354,461 · App. 06/175,312
Two-cycle internal combustion engine including horizontal crankshaft
Inventors:
Richard A. Heismann, Richard L. Morris
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Aug 4, 1980
Inventors
Richard A. Heismann
Richard L. Morris
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.