Granted Patent
Utility
US 5,166,358 · App. 07/629,490
Process for 1-phenyl-imidazoline-2,5-diones
Inventors:
Patrick Seuron, Daniel Varraillon
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Dec 18, 1990
Inventors
Patrick Seuron
Daniel Varraillon
Assignee (at issue)
Roussel Uclaf
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.