Granted Patent
Utility
US 5,208,035 · App. 07/801,901
Diclofenac sodium plaster
Inventors:
Hirohisa Okuyama, Yasuo Ikeda, Shigenori Otsuka, Shuichi Kasai, Akira Iwasa
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Dec 3, 1991
Inventors
Hirohisa Okuyama
Yasuo Ikeda
Shigenori Otsuka
Shuichi Kasai
Akira Iwasa
Assignee (at issue)
SS 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.