Granted Patent
Utility
US 4,418,192 · App. 06/370,212
Anthracyclinone trisaccharide compounds
Inventors:
Hiroshi Tanaka, Takeo Yoshioka, Yasutaka Shimauchi, Toshikazu Oki, Tomoyuki Ishikura, Tomio Takeuchi, Hamao Umezawa
Patented Case
View Patent ↗
Granted: Nov 29, 1983
Filed: Apr 20, 1982
Inventors
Hiroshi Tanaka
Takeo Yoshioka
Yasutaka Shimauchi
Toshikazu Oki
Tomoyuki Ishikura
Tomio Takeuchi
Hamao Umezawa
Assignee (at issue)
Sanraku-Ocean Co., 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.