Granted Patent
Utility
US 6,090,384 · App. 08/788,954
Antiallergic compostion
Inventors:
Chisei Ra, Koji Naito, Minoru Hirama, Ko Okumura
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Jan 24, 1997
Inventors
Chisei Ra
Koji Naito
Minoru Hirama
Ko Okumura
Assignees (at issue)
Chisei RA
Yoshitomi Pharmaceutical 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.