Granted Patent
Utility
US 4,653,552 · App. 06/779,927
Fuel tank cap
Inventor:
Dennis J. Friedle
Patented Case
View Patent ↗
Granted: Mar 31, 1987
Filed: Sep 25, 1985
Inventor
Dennis J. Friedle
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.