Granted Patent
Utility
US 5,648,250 · App. 08/412,859
Tissue plasminogen activator
Inventors:
Mineo Niwa, Yoshimasa Saito, Hitoshi Sasaki, Masako Hayashi, Jouji Notani, Masakazu Kobayashi
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Mar 29, 1995
Inventors
Mineo Niwa
Yoshimasa Saito
Hitoshi Sasaki
Masako Hayashi
Jouji Notani
Masakazu Kobayashi
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.