Granted Patent
Utility
US 5,874,277 · App. 08/835,099
Proteins, their production and use
Inventors:
Yasushi Shintani, Kazunori Nishi, Tomohiro Kawamoto
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Apr 4, 1997
Inventors
Yasushi Shintani
Kazunori Nishi
Tomohiro Kawamoto
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.