Granted Patent
Utility
US 6,294,669 · App. 09/269,109
Crystalline substance of cefditoren pivoxyl and the production of the same
Inventors:
Kiyoshi Yasui, Masahiro Onodera, Masamichi Sukegawa, Tatsuo Watanabe, Yuichi Yamamoto, Yasushi Murai, Katsuharu Iinuma
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Mar 19, 1999
Inventors
Kiyoshi Yasui
Masahiro Onodera
Masamichi Sukegawa
Tatsuo Watanabe
Yuichi Yamamoto
Yasushi Murai
Katsuharu Iinuma
Assignee (at issue)
MEIJI SEIKA KAISHA, LTD.
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.