Granted Patent
Utility
US 4,424,970 · App. 06/349,298
Panic post for pinball games
Inventors:
Ronald D. Halliburton, James H. Pearson, Robert J. Sava
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Feb 16, 1982
Inventors
Ronald D. Halliburton
James H. Pearson
Robert J. Sava
Assignee (at issue)
Bally Manufacturing 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.