Granted Patent
Utility
US 5,183,483 · App. 07/743,776
Pneumatic circuit control for pressure swing adsorption systems
Inventors:
John L. Servido, Robert E. Tucker, James C. Murphy
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Aug 21, 1991
Inventors
John L. Servido
Robert E. Tucker
James C. Murphy
Assignee (at issue)
Healthdyne, 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.