Granted Patent
Utility
US 5,938,195 · App. 08/164,058
Serpentine ramp for a pinball game
Inventors:
Python Anghelo, Raymond Czajaka, Dan K. P. Lee
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Dec 8, 1993
Inventors
Python Anghelo
Raymond Czajaka
Dan K. P. Lee
Assignee (at issue)
Williams Electronics Games, Inc.
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.