Granted Patent
Utility
US 6,696,509 · App. 09/767,517
Polycarbonate solid surface composition
Inventor:
Lon Risley
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jan 23, 2001
Inventor
Lon Risley
Assignee (at issue)
Avonite, 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.