Granted Patent
Utility
US 5,197,979 · App. 07/579,464
Stentless heart valve and holder
Inventors:
Lillian Quintero, Delos M. Cosgrove, Diana Nguyen-Thien-Nhon
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Sep 7, 1990
Inventors
Lillian Quintero
Delos M. Cosgrove
Diana Nguyen-Thien-Nhon
Assignee (at issue)
Baxter International 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.