Granted Patent
Utility
US 5,228,889 · App. 07/836,841
Device for eliminating bubbles of gas in a flowing liquid
Inventors:
Jean-Loup Cortial, Jacques Chevallet
Patented Case
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Granted: Jul 20, 1993
Filed: Feb 19, 1992
Inventors
Jean-Loup Cortial
Jacques Chevallet
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.