Granted Patent
Utility
US 4,361,653 · App. 06/225,532
Plasminogen preparations
Inventors:
Ryozo Watanabe, Mitsuomi Ohgaki
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Jan 16, 1981
Inventors
Ryozo Watanabe
Mitsuomi Ohgaki
Assignee (at issue)
Green Cross Corporation
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.