Granted Patent
Utility
US 6,372,297 · App. 08/967,856
Wood preservative oxathiazines
Inventors:
Robert A. Davis, Alex Raymond Albert Valcke, Walter G. Brouwer
Patented Case
View Patent ↗
Granted: Apr 16, 2002
Filed: Nov 12, 1997
Inventors
Robert A. Davis
Alex Raymond Albert Valcke
Walter G. Brouwer
Assignees (at issue)
Uniroyal Chemical Company, Inc.
Crompton Co./Cie
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.