Granted Patent
Utility
US 6,197,861 · App. 09/230,395
Stabilization of paints with spiroindane derivatives
Inventor:
Hugh Stephen Laver
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Jan 27, 1999
Inventor
Hugh Stephen Laver
Assignee (at issue)
Vantico 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.