Granted Patent
Utility
US 5,210,260 · App. 07/856,073
Process for obtaining bis(2,4-di-tert-butylphenyl) halophosphites
Inventors:
Manfred Bohshar, Hans-Jerg Kleiner
Patented Case
View Patent ↗
Granted: May 11, 1993
Filed: Jul 6, 1992
Inventors
Manfred Bohshar
Hans-Jerg Kleiner
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.