Granted Patent
Utility
US 5,855,562 · App. 08/779,712
Suction control valve
Inventors:
David R. Moore, Thomas C. Loescher
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Jan 7, 1997
Inventors
David R. Moore
Thomas C. Loescher
Assignee (at issue)
Hudson Respiratory Care, 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.