Granted Patent
Utility
US 5,281,742 · App. 07/823,454
Bis(fluorophenyl) carbonate derivatives
Inventors:
Kenji Hirai, Tomoyuki Yano, Mitsuo Yamashita, Emiko Ejiri, Tomoko Tateno, Kiyomi Aizawa
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Jan 21, 1992
Inventors
Kenji Hirai
Tomoyuki Yano
Mitsuo Yamashita
Emiko Ejiri
Tomoko Tateno
Kiyomi Aizawa
Assignees (at issue)
Sagami Chemical Research Center
KAKEN 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.