Granted Patent
Utility
US 4,302,848 · App. 06/138,362
Method for wearing and taking off protective suit
Inventors:
Katsuyuki Otsuka, Jin Ohuchi, Shizuo Arita
Patented Case
View Patent ↗
Granted: Dec 1, 1981
Filed: Apr 8, 1980
Inventors
Katsuyuki Otsuka
Jin Ohuchi
Shizuo Arita
Assignees (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
Fujikura Rubber Works, 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.