Granted Patent
Utility
US 6,743,620 · App. 09/214,465
Method for preparing retrovirus vector for gene therapy
Inventors:
Hideo Iba, Tohru Arai
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Jan 5, 1999
Inventors
Hideo Iba
Tohru Arai
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.