Granted Patent
Utility
US 6,511,052 · App. 09/369,803
Humidifying gas induction or supply system
Inventors:
Mark Christopher Tonkin, Mark Young, Mark Elden Schuchardt
Patented Case
View Patent ↗
Granted: Jan 28, 2003
Filed: Aug 6, 1999
Inventors
Mark Christopher Tonkin
Mark Young
Mark Elden Schuchardt
Assignees (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
Design Technology and Innovation Ltd
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.