Granted Patent
Utility
US 5,162,544 · App. 07/638,875
Indoline-containing phthalides
Inventor:
Rox Phaff
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Jan 8, 1991
Inventor
Rox Phaff
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.