Granted Patent
Utility
US 6,258,598 · App. 09/385,467
EBV-infected stomach cancer cell line
Inventors:
Masako Tajima, Masakatsu Takanashi, Yukihisa Miyazawa, Toshio Takeshima, Kota Okinaga
Patented Case
View Patent ↗
Granted: Jul 10, 2001
Filed: Aug 30, 1999
Inventors
Masako Tajima
Masakatsu Takanashi
Yukihisa Miyazawa
Toshio Takeshima
Kota Okinaga
Assignee (at issue)
Eisai 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.