Granted Patent
Utility
US 5,921,951 · App. 08/974,200
Apparatus for pumping fluid at a steady flow rate
Inventor:
Livingston B. Morris
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Nov 19, 1997
Inventor
Livingston B. Morris
Assignee (at issue)
THERAKOS, 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.