Granted Patent
Utility
US 4,424,342 · App. 06/361,175
Anthracycline antibiotic compounds
Inventors:
Toshikazu Oki, Akihiro Yoshimoto, Yasue Matsuzawa, Tomoyuki Ishikura, Hamao Umezawa, Tomio Takeuchi
Patented Case
View Patent ↗
Granted: Jan 3, 1984
Filed: Mar 24, 1982
Inventors
Toshikazu Oki
Akihiro Yoshimoto
Yasue Matsuzawa
Tomoyuki Ishikura
Hamao Umezawa
Tomio Takeuchi
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.