Granted Patent
Utility
US 4,820,210 · App. 07/122,221
Lower gearcase shift mechanism for marine propulsion device
Inventor:
Robert G. Dretzka
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Nov 18, 1987
Inventor
Robert G. Dretzka
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.