Granted Patent
Utility
US 5,484,239 · App. 08/173,516
Peristaltic pump and valve assembly for fluid processing systems
Inventors:
Arthur S. Chapman, Warren P. Williamson, IV
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Dec 22, 1993
Inventors
Arthur S. Chapman
Warren P. Williamson, IV
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.