Granted Patent
Utility
US 6,224,484 · App. 09/085,089
Progressive gaming system
Inventors:
Yoichi Okuda, Koichi Ozaki, Takashi Yamaguchi, Keiichi Yoshida, Junichi SASA
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: May 26, 1998
Inventors
Yoichi Okuda
Koichi Ozaki
Takashi Yamaguchi
Keiichi Yoshida
Junichi SASA
Assignee (at issue)
Konami 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.