Granted Patent
Utility
US 6,004,954 · App. 08/813,986
Condensed thiazine derivatives, their production and use thereof
Inventors:
Shuichi Furuya, Seiichi Tanida, Yoshikazu Ohta
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Mar 10, 1997
Inventors
Shuichi Furuya
Seiichi Tanida
Yoshikazu Ohta
Assignee (at issue)
Takeda Chemical Industries 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.