Granted Patent
Utility
US 4,980,508 · App. 07/308,483
Process for the preparation of 1,2-disulfone compounds
Inventor:
Ekkehard Bartmann
Patented Case
View Patent ↗
Granted: Dec 25, 1990
Filed: Feb 10, 1989
Inventor
Ekkehard Bartmann
Assignee (at issue)
Merck Patent GmbH
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.