Granted Patent
Utility
US 5,288,852 · App. 08/084,445
Human tumor necrosis factor polypeptides
Inventors:
Masaaki Yamada, Yasuji Furutani, Mitsue Notake, Juniti Yamagishi
Patented Case
View Patent ↗
Granted: Feb 22, 1994
Filed: Jul 1, 1993
Inventors
Masaaki Yamada
Yasuji Furutani
Mitsue Notake
Juniti Yamagishi
Assignee (at issue)
Dainippon Pharmaceutical Co., 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.