Granted Patent
Utility
US 6,572,788 · App. 09/864,887
Amine oxide wood preservatives
Inventor:
Leigh E. Walker
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: May 24, 2001
Inventor
Leigh E. Walker
Assignee (at issue)
LONZA LTD
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.