Granted Patent
Utility
US 4,536,351 · App. 06/561,807
Process for making aryldichlorophosphanes
Inventor:
Hubert Neumaier
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Dec 15, 1983
Inventor
Hubert Neumaier
Assignee (at issue)
Hoechst 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.