Granted Patent
Utility
US 4,842,278 · App. 07/207,009
Hierarchical lottery network with selection from differentiated playing pools
Inventor:
Victor Markowicz
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Jun 10, 1988
Inventor
Victor Markowicz
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.