Granted Patent
Utility
US 5,843,988 · App. 08/817,389
Cyclopropachromencarboxylic acid derivatives
Inventors:
Hirokazu Annoura, Atsuko Fukunaga, Toshio Tatasuoka, Yoshiko Horikawa
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Apr 18, 1997
Inventors
Hirokazu Annoura
Atsuko Fukunaga
Toshio Tatasuoka
Yoshiko Horikawa
Assignee (at issue)
SUNTORY HOLDINGS LIMITED
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.