Granted Patent
Utility
US 6,401,802 · App. 09/809,061
Units
Inventor:
Neil Douglas Cottingham
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Mar 16, 2001
Inventor
Neil Douglas Cottingham
Assignee (at issue)
Smiths Group PLC
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.