Granted Patent
Utility
US 5,885,457 · App. 08/943,455
Filtration media for filtering leukocytes from freshly drawn blood
Inventors:
Julian P. Breillatt, Jr., Sharon Pokropinski
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Oct 3, 1997
Inventors
Julian P. Breillatt, Jr.
Sharon Pokropinski
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.