Granted Patent
Utility
US 5,141,486 · App. 07/609,748
Washing cells
Inventor:
Glen Delbert Antwiler
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Nov 5, 1990
Inventor
Glen Delbert Antwiler
Assignee (at issue)
Cobe Laboratories, 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.