Granted Patent
Utility
US 4,524,166 · App. 06/651,185
Primary or secondary amino substituted dibenzo dioxaphosphepins and dioxaphosphocins
Inventors:
John D. Spivack, Stephen D. Pastor
Patented Case
View Patent ↗
Granted: Jun 18, 1985
Filed: Sep 14, 1984
Inventors
John D. Spivack
Stephen D. Pastor
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.