Granted Patent
Utility
US 4,828,263 · App. 07/152,738
Flipper with aiming markings
Inventor:
Dennis Nordman
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Feb 5, 1988
Inventor
Dennis Nordman
Assignee (at issue)
Bally Midway Mfg. Co.
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.