Granted Patent
Utility
US 5,034,320 · App. 07/032,459
Vinblastine synthesis
Inventor:
Tsuyoshi Endo
Patented Case
View Patent ↗
Granted: Jul 23, 1991
Filed: Mar 31, 1987
Inventor
Tsuyoshi Endo
Assignee (at issue)
Allelix 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.