Granted Patent
Utility
US 4,795,155 · App. 06/880,125
Powder down door open memory latch for a gaming device
Inventor:
Fulvio R. Grande
Patented Case
View Patent ↗
Granted: Jan 3, 1989
Filed: Jun 30, 1986
Inventor
Fulvio R. Grande
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.