Granted Patent
Utility
US 5,120,502 · App. 07/617,922
Pressure relief valve for membrane oxygenator
Inventors:
Lucas S. Gordon, Victor Ham
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Nov 21, 1990
Inventors
Lucas S. Gordon
Victor Ham
Assignee (at issue)
Baxter International 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.