Granted Patent
Utility
US 5,407,569 · App. 08/129,269
Mobile phase reservoir
Inventors:
Larry V. Greenley, V. Cloud Volpe
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Sep 30, 1993
Inventors
Larry V. Greenley
V. Cloud Volpe
Assignee (at issue)
SP Industries LLC
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.