Granted Patent
Utility
US 4,182,739 · App. 05/868,168
Blood oxygenator
Inventor:
Robert Curtis
Patented Case
View Patent ↗
Granted: Jan 8, 1980
Filed: Jan 9, 1978
Inventor
Robert Curtis
Assignee (at issue)
Shiley Incorporated
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.