Granted Patent
Utility
US 4,798,578 · App. 07/014,508
Autotransfusion device
Inventor:
Alan B. Ranford
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: Feb 13, 1987
Inventor
Alan B. Ranford
Assignee (at issue)
Sherwood Medical Company
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.