Granted Patent
Utility
US 6,783,646 · App. 10/604,117
Modular ceramic oxygen system
Inventors:
Scott R. Sehlin, Timothy C. Phillis
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jun 26, 2003
Inventors
Scott R. Sehlin
Timothy C. Phillis
Assignee (at issue)
Carleton Life Support Systems 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.