Granted Patent
Utility
US 5,320,139 · App. 08/040,320
Fluid delivery system
Inventors:
Carlton H. Paul, Russell Keene
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Mar 30, 1993
Inventors
Carlton H. Paul
Russell Keene
Assignee (at issue)
Millipore Corporation
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.