Granted Patent
Utility
US 5,004,548 · App. 07/282,245
Method and apparatus for rinsing and priming an exchanger
Inventors:
Gerard Richalley, Jacques Burtin
Patented Case
View Patent ↗
Granted: Apr 2, 1991
Filed: Dec 9, 1988
Inventors
Gerard Richalley
Jacques Burtin
Assignee (at issue)
Hospal Industrie
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.