Granted Patent
Utility
US 6,016,804 · App. 09/177,166
Respiratory mask and method of making thereof
Inventors:
Colin Gleason, Valentin Castro
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Oct 22, 1998
Inventors
Colin Gleason
Valentin Castro
Assignee (at issue)
Scott Technologies, 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.