IP Library › Granted Patent US 5,643,794
Granted Patent Utility
US 5,643,794 · App. 08/475,629

Apparatus for bioprocessing a circulating fluid

Inventors: Lee-Cheng Liu, Timothy Jon Perlman, Catherine A. Doyle
Patented Case View Patent ↗
Granted: Jul 1, 1997 Filed: Jun 7, 1995
Inventors
Lee-Cheng Liu
Timothy Jon Perlman
Catherine A. Doyle
Assignee (at issue)
W.R. Grace & Co. Conn.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,643,794
App. No.
08/475,629
Filed
1995-06-07
Granted
1997-07-01
Kind
A