Granted Patent
Utility
US 4,582,870 · App. 06/689,277
Dioxasilepin and dioxasilocin stabilizers
Inventors:
John D. Spivack, Stephen D. Pastor
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Jan 7, 1985
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.