Granted Patent
Utility
US 4,746,430 · App. 06/786,757
Fluid separation module
Inventor:
Thomas E. Cooley
Patented Case
View Patent ↗
Granted: May 24, 1988
Filed: Oct 11, 1985
Inventor
Thomas E. Cooley
Assignee (at issue)
W. R. Grace & Co.
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.