Granted Patent
Utility
US 6,323,368 · App. 09/452,012
Process
Inventor:
Graham Evans
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 30, 1999
Inventor
Graham Evans
Assignee (at issue)
Darwin Discovery Limited
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.