Granted Patent
Utility
US 5,300,112 · App. 07/914,381
Articulated heart pump
Inventor:
Iwrin R. Barr
Patented Case
View Patent ↗
Granted: Apr 5, 1994
Filed: Jul 14, 1992
Inventor
Iwrin R. Barr
Assignee (at issue)
AAI Corporation
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.