Granted Patent
Utility
US 6,403,336 · App. 08/370,356
Process for the production of &agr;-human atrial natriuretic polypeptide
Inventors:
Ikuo Ueda, Mineo Niwa, Yoshimasa Saito, Hisashi Yamada, Yoshinori Ishii
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jan 9, 1995
Inventors
Ikuo Ueda
Mineo Niwa
Yoshimasa Saito
Hisashi Yamada
Yoshinori Ishii
Assignee (at issue)
Fujisawa 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.