Granted Patent
Utility
US 6,162,855 · App. 09/408,610
Bauxite filler for carpet backings
Inventor:
Darryl A. Langley
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Sep 30, 1999
Inventor
Darryl A. Langley
Assignee (at issue)
Reynolds Metals Company
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.