Granted Patent
Utility
US 5,024,613 · App. 07/515,397
Blood recovery system and method
Inventors:
Alfred V. Vasconcellos, Preston J. Keeler, III
Patented Case
View Patent ↗
Granted: Jun 18, 1991
Filed: Apr 27, 1990
Inventors
Alfred V. Vasconcellos
Preston J. Keeler, III
Assignee (at issue)
Pfizer Hospital Products Group, 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.