Granted Patent
Utility
US 4,623,518 · App. 06/765,174
Blood oxygenator
Inventor:
Donald A. Raible
Patented Case
View Patent ↗
Granted: Nov 18, 1986
Filed: Aug 12, 1985
Inventor
Donald A. Raible
Assignee (at issue)
Baxter Travenol Laboratories, 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.