Granted Patent
Utility
US 4,645,645 · App. 06/719,999
Oxygenator having an improved heat exchanger
Inventors:
Felix J. Martinez, Larry Fuller, Richard J. Irmiter
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Apr 4, 1985
Inventors
Felix J. Martinez
Larry Fuller
Richard J. Irmiter
Assignee (at issue)
Renal Systems, 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.