Granted Patent
Utility
US 5,886,241 · App. 08/063,457
Methods and compositions for inhibiting the polymerization of ethylenically unsaturated monomers
Inventor:
Graciela B. Arhancet
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Apr 21, 1998
Inventor
Graciela B. Arhancet
Assignee (at issue)
Betzdearborn, Inc.
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.