Granted Patent
Utility
US 5,171,660 · App. 07/344,013
Process of revitalizing cells and tissue prior to cryopreservation
Inventors:
John Carpenter, Kelvin G. M. Brockbank
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Apr 26, 1989
Inventors
John Carpenter
Kelvin G. M. Brockbank
Assignee (at issue)
CryoLife, 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.