Granted Patent
Utility
US 4,224,304 · App. 05/917,251
Method and apparatus for the measurement of antigens and antibodies
Inventors:
Masanobu Sawai, Tadamitsu Sudo, Shogo Enomoto
Patented Case
View Patent ↗
Granted: Sep 23, 1980
Filed: Jun 20, 1978
Inventors
Masanobu Sawai
Tadamitsu Sudo
Shogo Enomoto
Assignee (at issue)
Mitsubishi Chemical Industries, 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.