Granted Patent
Utility
US 5,658,925 · App. 08/458,038
Aminobenzoic acid derivatives
Inventors:
Shuhei Miyazawa, Yorihisa Hoshino, Hisashi Shibata, Kazuo Hirota, Takaaki Kameyama, Shinya Abe, Takashi Yamanaka
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 1, 1995
Inventors
Shuhei Miyazawa
Yorihisa Hoshino
Hisashi Shibata
Kazuo Hirota
Takaaki Kameyama
Shinya Abe
Takashi Yamanaka
Assignee (at issue)
Eisai 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.