Granted Patent
Utility
US 5,068,449 · App. 07/476,578
Fluorinated benzoyl compounds
Inventors:
Seisaku Kumai, Osamu Yokokoji, Akihiro Tamaoki
Patented Case
View Patent ↗
Granted: Nov 26, 1991
Filed: Feb 7, 1990
Inventors
Seisaku Kumai
Osamu Yokokoji
Akihiro Tamaoki
Assignee (at issue)
ASAHI GLASS 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.