Granted Patent
Utility
US 6,269,839 · App. 09/370,920
Control member for a valve and method for determining fluid flow rate through a valve
Inventors:
Peter John Deacon Wickham, Ian Malcolm Smith, Denis Bullock, Patrick John McAuliffe
Patented Case
View Patent ↗
Granted: Aug 7, 2001
Filed: Aug 9, 1999
Inventors
Peter John Deacon Wickham
Ian Malcolm Smith
Denis Bullock
Patrick John McAuliffe
Assignee (at issue)
ResMed (R&D)
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.