Granted Patent
Utility
US 5,385,917 · App. 08/092,055
Carboxylic acid derivatives
Inventors:
Hiroaki Ueno, Masahiko Morioka, Fumiko Hatanaka
Patented Case
View Patent ↗
Granted: Jan 31, 1995
Filed: Jul 16, 1993
Inventors
Hiroaki Ueno
Masahiko Morioka
Fumiko Hatanaka
Assignee (at issue)
Mitsubishi Kasei Corporation
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.