Granted Patent
Utility
US 5,654,468 · App. 08/680,731
Heteroacetic acid derivatives
Inventors:
Naokata Yokoyama, Gordon N. Walker, Alan J. Main
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Jul 15, 1996
Inventors
Naokata Yokoyama
Gordon N. Walker
Alan J. Main
Assignee (at issue)
Ciba-Geigy
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.